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Xu B, Duan H, Chen X, Wang J, Ma Y, Jiang P, Yuan F, Wang Y, Ren Y, Du K, Wei Y, Wu X. Harnessing instability for work hardening in multi-principal element alloys. Nat Mater 2024:10.1038/s41563-024-01871-7. [PMID: 38605195 DOI: 10.1038/s41563-024-01871-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 03/19/2024] [Indexed: 04/13/2024]
Abstract
The strength-ductility trade-off has long been a Gordian knot in conventional metallic structural materials and it is no exception in multi-principal element alloys. In particular, at ultrahigh yield strengths, plastic instability, that is, necking, happens prematurely, because of which ductility almost entirely disappears. This is due to the growing difficulty in the production and accumulation of dislocations from the very beginning of tensile deformation that renders the conventional dislocation hardening insufficient. Here we propose that premature necking can be harnessed for work hardening in a VCoNi multi-principal element alloy. Lüders banding as an initial tensile response induces the ongoing localized necking at the band front to produce both triaxial stress and strain gradient, which enables the rapid multiplication of dislocations. This leads to forest dislocation hardening, plus extra work hardening due to the interaction of dislocations with the local-chemical-order regions. The dual work hardening combines to restrain and stabilize the premature necking in reverse as well as to facilitate uniform deformation. Consequently, a superior strength-and-ductility synergy is achieved with a ductility of ~20% and yield strength of 2 GPa during room-temperature and cryogenic deformation. These findings offer an instability-control paradigm for synergistic work hardening to conquer the strength-ductility paradox at ultrahigh yield strengths.
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Affiliation(s)
- Bowen Xu
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
- School of Engineering Science, University of Chinese Academy of Sciences, Beijing, China
| | - Huichao Duan
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Xuefei Chen
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
- School of Engineering Science, University of Chinese Academy of Sciences, Beijing, China
| | - Jing Wang
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
| | - Yan Ma
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
| | - Ping Jiang
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
| | - Fuping Yuan
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
- School of Engineering Science, University of Chinese Academy of Sciences, Beijing, China
| | - Yandong Wang
- State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, China
| | - Yang Ren
- Department of Physics, Centre for Neutron Scattering, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Kui Du
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Yueguang Wei
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing, China
| | - Xiaolei Wu
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China.
- School of Engineering Science, University of Chinese Academy of Sciences, Beijing, China.
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Xu C, Zhou L, Gao T, Chen Z, Hou X, Zhang J, Bai Y, Yang L, Liu H, Yang C, Zhao J, Hu YS. Development of High-Performance Iron-Based Phosphate Cathodes toward Practical Na-Ion Batteries. J Am Chem Soc 2024; 146:9819-9827. [PMID: 38546207 DOI: 10.1021/jacs.3c14452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Iron-based phosphate cathode of Na4Fe3(PO4)2(P2O7) has been regarded as a low-cost and structurally stable cathode material for Na-ion batteries (NIBs). However, their practical application is greatly hindered by the insufficient electrochemical performance and limited energy density. Here, we report a new iron-based phosphate cathode of Na4.5Fe3.5(PO4)2.5(P2O7) with the intergrown heterostructure of the maricite-type NaFePO4 and orthorhombic Na4Fe3(PO4)2(P2O7) phases at a mole ratio of 0.5:1. Benefited from the increased composition ratio and the spontaneous activation of the maricite-type NaFePO4 phase, the as-prepared Na4.5Fe3.5(PO4)2.5(P2O7) composites deliver a reversible capacity over 130 mA h g-1 and energy density close to 400 W h kg-1, which is far beyond that of the single-phase Na4Fe3(PO4)2(P2O7) cathode (∼120 mA h g-1 and ∼350 W h kg-1). Moreover, the kg-level products from the scale-up synthesis demonstrate a stable cycling performance over 2000 times at 3 C in pouch cells. We believe that our findings could show the way forward the practical application of the iron-based phosphate cathodes for NIBs.
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Affiliation(s)
- Chunliu Xu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Lin Zhou
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Teng Gao
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhao Chen
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Xueyan Hou
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Jiao Zhang
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Ying Bai
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, P. R. China
| | - Liangrong Yang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huizhou Liu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Yang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junmei Zhao
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong-Sheng Hu
- Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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An Z, Yang T, Shi C, Mao S, Wang L, Li A, Li W, Xue X, Sun M, Bai Y, He Y, Ren F, Lu Z, Yan M, Ren Y, Liu CT, Zhang Z, Han X. Negative enthalpy alloys and local chemical ordering: a concept and route leading to synergy of strength and ductility. Natl Sci Rev 2024; 11:nwae026. [PMID: 38405434 PMCID: PMC10890820 DOI: 10.1093/nsr/nwae026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 02/27/2024] Open
Abstract
Solid solutions are ubiquitous in metals and alloys. Local chemical ordering (LCO) is a fundamental sub-nano/nanoscale process that occurs in many solid solutions and can be used as a microstructure to optimize strength and ductility. However, the formation of LCO has not been fully elucidated, let alone how to provide efficient routes for designing LCO to achieve synergistic effects on both superb strength and ductility. Herein, we propose the formation and control of LCO in negative enthalpy alloys. With engineering negative enthalpy in solid solutions, genetic LCO components are formed in negative enthalpy refractory high-entropy alloys (RHEAs). In contrast to conventional 'trial-and-error' approaches, the control of LCO by using engineering negative enthalpy in RHEAs is instructive and results in superior strength (1160 MPa) and uniform ductility (24.5%) under tension at ambient temperature, which are among the best reported so far. LCO can promote dislocation cross-slip, enhancing the interaction between dislocations and their accumulation at large tensile strains; sustainable strain hardening can thereby be attained to ensure high ductility of the alloy. This work paves the way for new research fields on negative enthalpy solid solutions and alloys for the synergy of strength and ductility as well as new functions.
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Affiliation(s)
- Zibing An
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Tao Yang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Caijuan Shi
- Key Laboratory of Partial Acceleration Physics & Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Shengcheng Mao
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Lihua Wang
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Ang Li
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Wei Li
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Xianmeng Xue
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Ming Sun
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Yifan Bai
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Yapeng He
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Fuzeng Ren
- Department of Materials Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhouguang Lu
- Department of Materials Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ming Yan
- Department of Materials Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yang Ren
- Department of Physics, City University of Hong Kong, Hong Kong, China
| | - Chain-Tsuan Liu
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Ze Zhang
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
- State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
| | - Xiaodong Han
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
- Department of Materials Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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Xiao Y, Miao Y, Gong F, Zhang T, Zhou L, Yu Q, Hu S, Chen S. Strain Self-Adaptive Iron Selenides Toward Stable Na + -Ion Batteries with Impressive Initial Coulombic Efficiency. Small 2024:e2311703. [PMID: 38459649 DOI: 10.1002/smll.202311703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/08/2024] [Indexed: 03/10/2024]
Abstract
High tap density electrodes play a vital role in developing rechargeable batteries with high volumetric capacities, however, developing advanced electrodes with satisfied capacity, excellent structural stability, and achieving the resulted batteries with a high initial Coulombic efficiency (ICE) and good rate capability with long lifespan simultaneously, are still an intractable challenge. Herein, an ultrahigh ICE of 94.1% and stable cycling of carbon-free iron selenides anode is enabled with a high tap density of 2.57 g cm-3 up to 4000 cycles at 5 A g-1 through strain-modulating by constructing a homologous heterostructure. Systematical characterization and theoretical calculation show that the self-adaptive homologous heterointerface alleviates the stress of the iron selenide anodes during cycling processes and subsequently improves the stability of the assembled batteries. Additionally, the well-formed homologous heterostructure also contributes to the rapid Na+ diffusion kinetic, increased charge transfer, and good reversibility of the transformation reactions, endowing the appealing rate capability of carbon-free iron selenides. The proposed design strategy provides new insight and inspiration to aid in the ongoing quest for advanced electrode materials with high tap densities and excellent stability.
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Affiliation(s)
- Ying Xiao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yue Miao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Fenglian Gong
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Tonghui Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Luoyuan Zhou
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Qingtao Yu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Shilin Hu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Shimou Chen
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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Zhang Q, Liu Z, Li B, Mu L, Sheng K, Xiong Y, Cheng J, Zhou J, Xiong Z, Zhou L, Jiang L, Wu J, Cai X, Zheng Y, Du W, Li Y, Zhu Y. Platinum-Loaded Cerium Oxide Capable of Repairing Neuronal Homeostasis for Cerebral Ischemia-Reperfusion Injury Therapy. Adv Healthc Mater 2024:e2303027. [PMID: 38323853 DOI: 10.1002/adhm.202303027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/12/2024] [Indexed: 02/08/2024]
Abstract
Effective neuroprotective agents are required to prevent neurological damage caused by reactive oxygen species (ROS) generated by cerebral ischemia-reperfusion injury (CIRI) following an acute ischemic stroke. Herein, it is aimed to develop the neuroprotective agents of cerium oxide loaded with platinum clusters engineered modifications (Ptn -CeO2 ). The density functional theory calculations show that Ptn -CeO2 could effectively scavenge ROS, including hydroxyl radicals (·OH) and superoxide anions (·O2 - ). In addition, Ptn -CeO2 exhibits the superoxide dismutase- and catalase-like enzyme activities, which is capable of scavenging hydrogen peroxide (H2 O2 ). The in vitro studies show that Ptn -CeO2 could adjust the restoration of the mitochondrial metabolism to ROS homeostasis, rebalance cytokines, and feature high biocompatibility. The studies in mice CIRI demonstrate that Ptn -CeO2 could also restore cytokine levels, reduce cysteine aspartate-specific protease (cleaved Caspase 3) levels, and induce the polarization of microglia to M2-type macrophages, thus inhibiting the inflammatory responses. As a result, Ptn -CeO2 inhibits the reperfusion-induced neuronal apoptosis, relieves the infarct volume, reduces the neurological severity score, and improves cognitive function. Overall, these findings suggest that the prominent neuroprotective effect of the engineered Ptn -CeO2 has a significant neuroprotective effect and provides a potential therapeutic alternative for CIRI.
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Affiliation(s)
- Qiang Zhang
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Zihao Liu
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Bo Li
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160, Pujian Road, Pudong District, Shanghai, 200127, China
- Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, No. 160, Pujian Road, Pudong District, Shanghai, 200127, China
| | - Liuhua Mu
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325001, China
- School of Physical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kai Sheng
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Yijia Xiong
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Jiahui Cheng
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160, Pujian Road, Pudong District, Shanghai, 200127, China
| | - Jia Zhou
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Zhi Xiong
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Lingling Zhou
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Lixian Jiang
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Jianrong Wu
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Xiaojun Cai
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Yuanyi Zheng
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Wenxian Du
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Yuehua Li
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Yueqi Zhu
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
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Jiang Y, Feng Z, Tao L. Deformation mechanisms based on the multiscale molecular dynamics of a gradient TA1 titanium alloy. Nanoscale 2023; 16:447-461. [PMID: 38083899 DOI: 10.1039/d3nr03600f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
The heterogeneous gradient TA1 titanium alloy holds great potential for a wide range of industrial applications. Considering the influence of the gradient structure on the plastic deformation behavior of the material, the TA1 gradient polycrystalline model under uniaxial compression is established. The deformation behavior of TA1 gradient polycrystals under uniaxial compression is investigated by molecular dynamics simulation. The simulation shows that there is significant transmission during the plastic deformation of TA1 gradient polycrystals. The transmissibility of plastic deformation is specified by the alternating appearance of twinning and grain refinement. Besides, the uniaxial compression process is accompanied by active dislocation motions. Moreover, the movement of dislocations is a dynamic cyclic process. In the same uniaxial compression environment, the triggering of the plasticity mechanism in the gradient polycrystalline model is closely related to grain size. The smaller grain size crystals hardly produce plastic deformation. Grain boundary migration of medium grain size crystals dominates in plastic deformation. The proliferation of dislocations under compressive stress is the primary trigger mechanism in larger grain size crystals. In addition, the stress concentration phenomenon in regions with medium grain sizes is more significant than that in regions with larger and small grain sizes.
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Affiliation(s)
- Yulian Jiang
- School of Mechanical Engineering, Guizhou University, Guizhou Key Laboratory of Special Equipment and Manufacturing Technology, Guizhou University, Guiyang, Guizhou Province, 550025, P. R. China.
| | - Zhiguo Feng
- School of Mechanical Engineering, Guizhou University, Guizhou Key Laboratory of Special Equipment and Manufacturing Technology, Guizhou University, Guiyang, Guizhou Province, 550025, P. R. China.
| | - Liang Tao
- School of Mechanical Engineering, Guizhou University, Guizhou Key Laboratory of Special Equipment and Manufacturing Technology, Guizhou University, Guiyang, Guizhou Province, 550025, P. R. China.
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Wang S, Yan H, Zhang D, Hu J, Li Y. The Microstructures and Deformation Mechanism of Hetero-Structured Pure Ti under High Strain Rates. Materials (Basel) 2023; 16:7059. [PMID: 37959656 PMCID: PMC10650222 DOI: 10.3390/ma16217059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023]
Abstract
This study investigates the microstructures and deformation mechanism of hetero-structured pure Ti under different high strain rates (500 s-1, 1000 s-1, 2000 s-1). It has been observed that, in samples subjected to deformation, the changes in texture are minimal and the rise in temperature is relatively low. Therefore, the influence of these two factors on the deformation mechanism can be disregarded. As the strain rate increases, the dominance of dislocation slip decreases while deformation twinning becomes more prominent. Notably, at a strain rate of 2000 s-1, nanoscale twin lamellae are activated within the grain with a size of 500 nm, which is a rarely observed phenomenon in pure Ti. Additionally, martensitic phase transformation has also been identified. In order to establish a correlation between the stress required for twinning and the grain size, a modified Hall-Petch model is proposed, with the obtained value of Ktwin serving as an effective metric for this relationship. These findings greatly enhance our understanding of the mechanical responses of Ti and broaden the potential applications of Ti in dynamic deformation scenarios.
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Affiliation(s)
- Shuaizhuo Wang
- National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China; (S.W.); (H.Y.); (D.Z.); (J.H.)
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Haotian Yan
- National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China; (S.W.); (H.Y.); (D.Z.); (J.H.)
| | - Dongmei Zhang
- National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China; (S.W.); (H.Y.); (D.Z.); (J.H.)
| | - Jiajun Hu
- National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China; (S.W.); (H.Y.); (D.Z.); (J.H.)
| | - Yusheng Li
- National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China; (S.W.); (H.Y.); (D.Z.); (J.H.)
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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8
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Wang T, He J, Zhu Z, Cheng XB, Zhu J, Lu B, Wu Y. Heterostructures Regulating Lithium Polysulfides for Advanced Lithium-Sulfur Batteries. Adv Mater 2023; 35:e2303520. [PMID: 37254027 DOI: 10.1002/adma.202303520] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/17/2023] [Indexed: 06/01/2023]
Abstract
Sluggish reaction kinetics and severe shuttling effect of lithium polysulfides seriously hinder the development of lithium-sulfur batteries. Heterostructures, due to unique properties, have congenital advantages that are difficult to be achieved by single-component materials in regulating lithium polysulfides by efficient catalysis and strong adsorption to solve the problems of poor reaction kinetics and serious shuttling effect of lithium-sulfur batteries. In this review, the principles of heterostructures expediting lithium polysulfides conversion and anchoring lithium polysulfides are detailedly analyzed, and the application of heterostructures as sulfur host, interlayer, and separator modifier to improve the performance of lithium-sulfur batteries is systematically reviewed. Finally, the problems that need to be solved in the future study and application of heterostructures in lithium-sulfur batteries are prospected. This review will provide a valuable reference for the development of heterostructures in advanced lithium-sulfur batteries.
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Affiliation(s)
- Tao Wang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, P. R. China
| | - Jiarui He
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, P. R. China
| | - Zhi Zhu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, P. R. China
| | - Xin-Bing Cheng
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, P. R. China
| | - Jian Zhu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Bingan Lu
- School of Physics and Electronics, Hunan University, Changsha, 410082, P. R. China
| | - Yuping Wu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, P. R. China
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9
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Gao S, Li Z, Van Petegem S, Ge J, Goel S, Vas JV, Luzin V, Hu Z, Seet HL, Sanchez DF, Van Swygenhoven H, Gao H, Seita M. Additive manufacturing of alloys with programmable microstructure and properties. Nat Commun 2023; 14:6752. [PMID: 37903769 PMCID: PMC10616214 DOI: 10.1038/s41467-023-42326-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 10/06/2023] [Indexed: 11/01/2023] Open
Abstract
In metallurgy, mechanical deformation is essential to engineer the microstructure of metals and to tailor their mechanical properties. However, this practice is inapplicable to near-net-shape metal parts produced by additive manufacturing (AM), since it would irremediably compromise their carefully designed geometries. In this work, we show how to circumvent this limitation by controlling the dislocation density and thermal stability of a steel alloy produced by laser powder bed fusion (LPBF) technology. We show that by manipulating the alloy's solidification structure, we can 'program' recrystallization upon heat treatment without using mechanical deformation. When employed site-specifically, our strategy enables designing and creating complex microstructure architectures that combine recrystallized and non-recrystallized regions with different microstructural features and properties. We show how this heterogeneity may be conducive to materials with superior performance compared to those with monolithic microstructure. Our work inspires the design of high-performance metal parts with artificially engineered microstructures by AM.
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Affiliation(s)
- Shubo Gao
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Republic of Singapore
- Additive Manufacturing Division, Singapore Institute of Manufacturing Technology (SIMTech), Agency for Science, Technology and Research (A*STAR), Singapore, 636732, Republic of Singapore
| | - Zhi Li
- Institute of High Performance Computing, Agency for Science, Technology and Research (A*STAR), Singapore, 138632, Republic of Singapore
| | - Steven Van Petegem
- Photon Science Division, Paul Scherrer Institute, Villigen, 5232, Switzerland
| | - Junyu Ge
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Republic of Singapore
| | - Sneha Goel
- Photon Science Division, Paul Scherrer Institute, Villigen, 5232, Switzerland
- VTT Technical Research Centre of Finland, Espoo, 02150, Finland
- Advanced materials for nuclear energy, VTT Technical Research Centre of Finland, Espoo, 02150, Finland
| | - Joseph Vimal Vas
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Republic of Singapore
| | - Vladimir Luzin
- Australian Nuclear Science & Technology Organisation (ANSTO), Lucas Heights, NSW, 2234, Australia
| | - Zhiheng Hu
- Additive Manufacturing Division, Singapore Institute of Manufacturing Technology (SIMTech), Agency for Science, Technology and Research (A*STAR), Singapore, 636732, Republic of Singapore
| | - Hang Li Seet
- Additive Manufacturing Division, Singapore Institute of Manufacturing Technology (SIMTech), Agency for Science, Technology and Research (A*STAR), Singapore, 636732, Republic of Singapore
| | | | | | - Huajian Gao
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Republic of Singapore
- Institute of High Performance Computing, Agency for Science, Technology and Research (A*STAR), Singapore, 138632, Republic of Singapore
| | - Matteo Seita
- Department of Engineering, University of Cambridge, Cambridge, CB2 1PZ, UK.
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10
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Sadeghi B. Advancing High-Performance Metal Matrix Composites: Uniting Nature's Design and Engineering Innovation. Materials (Basel) 2023; 16:6077. [PMID: 37763355 PMCID: PMC10532585 DOI: 10.3390/ma16186077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023]
Abstract
We are pleased to present this Special Issue entitled "Advanced High-Performance Metal Matrix Composites (MMCs)," which explores promising materials science that will change everything from aerospace to automotive technology [...].
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Affiliation(s)
- Behzad Sadeghi
- Department of Innovation Engineering, University of Salento, Via per Arnesano, 73100 Lecce, Italy
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11
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Sadeghi B, Cavaliere PD. Reviewing the Integrated Design Approach for Augmenting Strength and Toughness at Macro- and Micro-Scale in High-Performance Advanced Composites. Materials (Basel) 2023; 16:5745. [PMID: 37687438 PMCID: PMC10488890 DOI: 10.3390/ma16175745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 09/10/2023]
Abstract
In response to the growing demand for high-strength and high-toughness materials in industries such as aerospace and automotive, there is a need for metal matrix composites (MMCs) that can simultaneously increase strength and toughness. The mechanical properties of MMCs depend not only on the content of reinforcing elements, but also on the architecture of the composite (shape, size, and spatial distribution). This paper focuses on the design configurations of MMCs, which include both the configurations resulting from the reinforcements and the inherent heterogeneity of the matrix itself. Such high-performance MMCs exhibit excellent mechanical properties, such as high strength, plasticity, and fracture toughness. These properties, which are not present in conventional homogeneous materials, are mainly due to the synergistic effects resulting from the interactions between the internal components, including stress-strain gradients, geometrically necessary dislocations, and unique interfacial behavior. Among them, aluminum matrix composites (AMCs) are of particular importance due to their potential for weight reduction and performance enhancement in aerospace, electronics, and electric vehicles. However, the challenge lies in the inverse relationship between strength and toughness, which hinders the widespread use and large-scale development of MMCs. Composite material design plays a critical role in simultaneously improving strength and toughness. This review examines the advantages of toughness, toughness mechanisms, toughness distribution properties, and structural parameters in the development of composite structures. The development of synthetic composites with homogeneous structural designs inspired by biological composites such as bone offers insights into achieving exceptional strength and toughness in lightweight structures. In addition, understanding fracture behavior and toughness mechanisms in heterogeneous nanostructures is critical to advancing the field of metal matrix composites. The future development direction of architectural composites and the design of the reinforcement and toughness of metal matrix composites based on energy dissipation theory are also proposed. In conclusion, the design of composite architectures holds enormous potential for the development of composites with excellent strength and toughness to meet the requirements of lightweight structures in various industries.
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Affiliation(s)
- Behzad Sadeghi
- Department of Innovation Engineering, University of Salento, Via Per Arnesano, 73100 Lecce, Italy;
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12
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Liu L, Li S, Pan D, Hui D, Zhang X, Li B, Liang T, Shi P, Bahador A, Umeda J, Kondoh K, Li S, Gao L, Wang Z, Li G, Zhang S, Wang R, Chen W. Loss-free tensile ductility of dual-structure titanium composites via an interdiffusion and self-organization strategy. Proc Natl Acad Sci U S A 2023; 120:e2302234120. [PMID: 37399391 PMCID: PMC10334790 DOI: 10.1073/pnas.2302234120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/15/2023] [Indexed: 07/05/2023] Open
Abstract
The deformation-coordination ability between ductile metal and brittle dispersive ceramic particles is poor, which means that an improvement in strength will inevitably sacrifice ductility in dispersion-strengthened metallic materials. Here, we present an inspired strategy for developing dual-structure-based titanium matrix composites (TMCs) that achieve 12.0% elongation comparable to the matrix Ti6Al4V alloys and enhanced strength compared to homostructure composites. The proposed dual-structure comprises a primary structure, namely, a TiB whisker-rich region engendered fine grain Ti6Al4V matrix with a three-dimensional micropellet architecture (3D-MPA), and an overall structure consisting of evenly distributed 3D-MPA "reinforcements" and a TiBw-lean titanium matrix. The dual structure presents a spatially heterogeneous grain distribution with 5.8 μm fine grains and 42.3 μm coarse grains, which exhibits excellent hetero-deformation-induced (HDI) hardening and achieves a 5.8% ductility. Interestingly, the 3D-MPA "reinforcements" show 11.1% isotropic deformability and 66% dislocation storage, which endows the TMCs with good strength and loss-free ductility. Our enlightening method uses an interdiffusion and self-organization strategy based on powder metallurgy to enable metal matrix composites with the heterostructure of the matrix and the configuration of reinforcement to address the strength-ductility trade-off dilemma.
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Affiliation(s)
- Lei Liu
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi710048, China
| | - Shufeng Li
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi710048, China
- Xi’an Key Laboratory of Advanced Powder Metallurgy Materials and New Technology, Xi’an, Shaanxi710048, China
| | - Deng Pan
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi710048, China
- Xi’an Sailong Additive Technology Co., Ltd., Xi’an710018, China
| | - Dongxu Hui
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi710048, China
| | - Xin Zhang
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi710048, China
- Xi’an Key Laboratory of Advanced Powder Metallurgy Materials and New Technology, Xi’an, Shaanxi710048, China
| | - Bo Li
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi710048, China
- Xi’an Key Laboratory of Advanced Powder Metallurgy Materials and New Technology, Xi’an, Shaanxi710048, China
| | - Tianshou Liang
- School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi710055, China
| | - Pengpeng Shi
- School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi710055, China
- School of Mathematics and Statistics, Ningxia University, Yinchuan, Ningxia750021, China
| | - Abdollah Bahador
- Joining and Welding Research Institute, Osaka University, Ibaraki, Osaka567-0047, Japan
- Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur54100, Malaysia
| | - Junko Umeda
- Joining and Welding Research Institute, Osaka University, Ibaraki, Osaka567-0047, Japan
| | - Katsuyoshi Kondoh
- Joining and Welding Research Institute, Osaka University, Ibaraki, Osaka567-0047, Japan
| | - Shaolong Li
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi710048, China
| | - Lina Gao
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi710048, China
| | - Zhimao Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing100049, China
| | - Gang Li
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing100049, China
| | - Shuyan Zhang
- Centre of Excellence for Advanced Materials, Guangdong, Dongguan523808, China
| | - Ruihong Wang
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi710048, China
- Xi’an Key Laboratory of Advanced Powder Metallurgy Materials and New Technology, Xi’an, Shaanxi710048, China
| | - Wenge Chen
- School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, Shaanxi710048, China
- Xi’an Key Laboratory of Advanced Powder Metallurgy Materials and New Technology, Xi’an, Shaanxi710048, China
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13
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Shang Z, Sun T, Ding J, Richter NA, Heckman NM, White BC, Boyce BL, Hattar K, Wang H, Zhang X. Gradient nanostructured steel with superior tensile plasticity. Sci Adv 2023; 9:eadd9780. [PMID: 37256952 PMCID: PMC10413645 DOI: 10.1126/sciadv.add9780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 04/27/2023] [Indexed: 06/02/2023]
Abstract
Nanostructured metallic materials with abundant high-angle grain boundaries exhibit high strength and good radiation resistance. While the nanoscale grains induce high strength, they also degrade tensile ductility. We show that a gradient nanostructured ferritic steel exhibits simultaneous improvement in yield strength by 36% and uniform elongation by 50% compared to the homogenously structured counterpart. In situ tension studies coupled with electron backscattered diffraction analyses reveal intricate coordinated deformation mechanisms in the gradient structures. The outermost nanolaminate grains sustain a substantial plastic strain via a profound deformation mechanism involving prominent grain reorientation. This synergistic plastic co-deformation process alters the rupture mode in the post-necking regime, thus delaying the onset of fracture. The present discovery highlights the intrinsic plasticity of nanolaminate grains and their significance in simultaneous improvement of strength and tensile ductility of structural metallic materials.
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Affiliation(s)
- Zhongxia Shang
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Tianyi Sun
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Jie Ding
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Nicholas A. Richter
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
| | | | | | - Brad L. Boyce
- Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - Khalid Hattar
- Sandia National Laboratories, Albuquerque, NM 87185, USA
- Department of Nuclear Engineering, University of Tennessee, Knoxville, TN 37996, USA
| | - Haiyan Wang
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
- School of Electrical and Computer Engineering, West Lafayette, IN 47907, USA
| | - Xinghang Zhang
- School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
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14
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Abstract
Many functional materials are approaching their performance limits due to inherent trade-offs between essential physical properties. Such trade-offs can be overcome by engineering a material that has an ordered arrangement of structural units, including constituent components/phases, grains, and domains. By rationally manipulating the ordering with abundant structural units at multiple length scales, the structural ordering opens up unprecedented opportunities to create transformative functional materials, as amplified properties or disruptive functionalities can be realized. In this perspective article, a brief overview of recent advances in the emerging ordered functional materials across catalytic, thermoelectric, and magnetic materials regarding the fabrication, structure, and property is presented. Then the possibility of applying this structural ordering strategy to highly efficient neuromorphic computing devices and durable battery materials is discussed. Finally, remaining scientific challenges are highlighted, and the prospects for ordered functional materials are made. This perspective aims to draw the attention of the scientific community to the emerging ordered functional materials and trigger intense studies on this topic.
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Affiliation(s)
- Hai‐Tian Zhang
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Tao Zhang
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Xiangyi Zhang
- State Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdao066004China
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15
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Li Y, Yuan G, Li L, Kang J, Yan F, Du P, Raabe D, Wang G. Ductile 2-GPa steels with hierarchical substructure. Science 2023; 379:168-173. [PMID: 36634172 DOI: 10.1126/science.add7857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Mechanically strong and ductile load-carrying materials are needed in all sectors, from transportation to lightweight design to safe infrastructure. Yet, a grand challenge is to unify both features in one material. We show that a plain medium-manganese steel can be processed to have a tensile strength >2.2 gigapascals at a uniform elongation >20%. This requires a combination of multiple transversal forging, cryogenic treatment, and tempering steps. A hierarchical microstructure that consists of laminated and twofold topologically aligned martensite with finely dispersed retained austenite simultaneously activates multiple micromechanisms to strengthen and ductilize the material. The dislocation slip in the well-organized martensite and the gradual deformation-stimulated phase transformation synergistically produce the high ductility. Our nanostructure design strategy produces 2 gigapascal-strength and yet ductile steels that have attractive composition and the potential to be produced at large industrial scales.
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Affiliation(s)
- Yunjie Li
- State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, People's Republic of China
| | - Guo Yuan
- State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, People's Republic of China
| | - Linlin Li
- State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, People's Republic of China
| | - Jian Kang
- State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, People's Republic of China
| | - Fengkai Yan
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China
| | - Pengju Du
- Jiangyin Xingcheng Special Steel Works Co., Ltd, Jiangyin 214400, People's Republic of China
| | - Dierk Raabe
- Max-Planck-Institut für Eisenforschung, 40237 Düsseldorf, Germany
| | - Guodong Wang
- State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, People's Republic of China
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16
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Yuan J, Yang Y, Duan S, Dong Y, Li C, Zhang Z. Rapid Design, Microstructures, and Properties of Low-Cost Co-Free Al-Cr-Fe-Ni Eutectic Medium Entropy Alloys. Materials (Basel) 2022; 16:56. [PMID: 36614392 PMCID: PMC9821732 DOI: 10.3390/ma16010056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
In this study, we establish a mathematical rule for accelerating the prediction of low-cost Co-free AlCraFebNic FCC/B2-structured eutectic medium entropy alloys (EMEAs). The mathematical formulas are c ≥ 1.0, 4.38a + 4.28b + 3.97c ≈ 20.55, and c − a ˃ 1.0. With this rule, we successfully predict the AlCr1.18FeNi2.8 and AlCrFe1.46Ni2.5 eutectic alloys and verify their eutectic morphology by experiments. Both the AlCr1.18FeNi2.8 and AlCrFe1.46Ni2.5 EHEAs exhibit excellent compressive mechanical properties, with yield stress higher than 500 MPa, compressive fracture strength higher than 2450 MPa, and fracture strain > 40%, which can be attributed to their unique lamellar microstructure. Moreover, both alloys exhibit good corrosion resistance in 3.5 wt.% NaCl solution. Among them, the AlCr1.18FeNi2.8 EHEA exhibits better corrosion resistance due to the higher content of the FCC phase.
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17
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Sas-Boca IM, Iluțiu-Varvara DA, Tintelecan M, Aciu C, Frunzӑ DI, Popa F. Studies on Hot-Rolling Bonding of the Al-Cu Bimetallic Composite. Materials (Basel) 2022; 15:8807. [PMID: 36556613 PMCID: PMC9784321 DOI: 10.3390/ma15248807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/23/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Through the approaches in this article, an attempt was made to analyze the bonding of Al-Cu bimetallic composite layers and the highlight of the diffusion at the boundary between the layers, by hot rolling. An aluminum alloy 6060 plate (EN-AW AlMgSi) and a Cu-ETP ½ hard (CW004A) plate were used. All of these layers of materials were TIG-welded, at both ends, into a heat-treated layered composite and subsequently subjected to the hot-rolling process. The Al-Cu composite material obtained was analyzed by scanning electronic microscopy (SEM) analysis, after being subjected to the tensile test, as well as energy-dispersive X-ray (EDX) analysis. The obtained results highlighted the diffusion at the boundary between the layers of the Al-Cu composite as well as its ductile breakage and the distribution of the amount of Al and Cu at the interface of the layers.
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Affiliation(s)
- Ioana-Monica Sas-Boca
- Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, 28 Memorandumului Street, 400114 Cluj-Napoca, Romania
| | - Dana-Adriana Iluțiu-Varvara
- Faculty of Buildings Services Engineering, Technical University of Cluj-Napoca, 28 Memorandumului Street, 400114 Cluj-Napoca, Romania
| | - Marius Tintelecan
- Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, 28 Memorandumului Street, 400114 Cluj-Napoca, Romania
| | - Claudiu Aciu
- Faculty of Civil Engineering, Technical University of Cluj-Napoca, 28 Memorandumului Street, 400114 Cluj-Napoca, Romania
| | - Dan Ioan Frunzӑ
- Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, 28 Memorandumului Street, 400114 Cluj-Napoca, Romania
| | - Florin Popa
- Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, 28 Memorandumului Street, 400114 Cluj-Napoca, Romania
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18
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Ding Z, Li W, Dou Y, Zhou Y, Ren Y, Jing H, Liang X, Wang X, Li N. Triangular-shaped homologous heterostructure as photocatalytic H 2S scavenger and macrophage modulator for rheumatoid arthritis therapy. J Mater Chem B 2022; 10:8549-8564. [PMID: 36239131 DOI: 10.1039/d2tb01650h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic arthropathy causing cartilage destruction, bone erosion, and even disability. Although some advances in RA treatment have been made based on inflammatory cytokine inhibition, long-term treatment and drug effect have been restrained by severe side effects. Herein, we developed a resveratrol (RSV)-loaded Ag/Ag2S triangular-shaped homologous heterostructure with polyethylene glycol/folic acid (PEG/FA) modification (Ag/Ag2S-PEG-FA/RSV NTs) to simultaneously suppress inflammatory cytokine over-expression through photocatalytic H2S scavenging and macrophage polarization stimulation. On one hand, the over-expressed H2S, which acted as a pro-inflammatory mediator to activate the MAPK/ICAM-1 pathway and exacerbate inflammation, was eliminated through photocatalysis. The homologous Ag and Ag2S of the heterostructure enhanced electron separation and transfer by acting as a charge acceptor and electron generator, respectively, which restrained electron/hole recombination and promoted photocatalysis efficiency. Additionally, the intrinsic superoxide dismutase (SOD) and catalase (CAT) activity of Ag decomposed the reactive oxygen species (ROS) over-expressed in the RA microenvironment, which supplied O2 for the photocatalytic H2S scavenging progress. On the other hand, RSV, a natural product with anti-inflammatory activity, could be delivered to the inflammatory joint by the targeting effect of PEG-FA, thus inhibiting the IκB/NF-κB pro-inflammatory pathway to induce macrophage interconversion balance from M1 to M2. As expected, the Ag/Ag2S-PEG-FA/RSV NTs exhibited H2S scavenging capacity and modulated macrophage polarization to reduce the inflammatory cytokine level and halt RA progression in vitro and in vivo. Overall, this study revealed a therapeutic strategy with high efficacy, which opens broad prospects for RA treatment.
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Affiliation(s)
- Ziqiao Ding
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, 300072, Tianjin, P. R. China.
| | - Wen Li
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, 300072, Tianjin, P. R. China.
| | - Yunsheng Dou
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, 300072, Tianjin, P. R. China.
| | - Yue Zhou
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, 300072, Tianjin, P. R. China.
| | - Yingzi Ren
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, 300072, Tianjin, P. R. China.
| | - Huaqing Jing
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, 300072, Tianjin, P. R. China.
| | - Xiaoyang Liang
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, 300072, Tianjin, P. R. China.
| | - Xinxing Wang
- Tianjin Institute of Environmental and Operational Medicine, 1 Dali Road, Heping District, 300050, Tianjin, P. R. China.
| | - Nan Li
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, 300072, Tianjin, P. R. China.
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