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Aggarwal D, Kumar V, Sharma S. Effect of rare earth oxide microparticles on mechanical, corrosion, antibacterial, and hemolytic behavior of Mg-Hydroxyapatite composite for orthopedic applications - A preliminary in-vitro study. J Biomed Mater Res B Appl Biomater 2023; 111:1232-1246. [PMID: 36773030 DOI: 10.1002/jbm.b.35228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 01/14/2023] [Accepted: 01/30/2023] [Indexed: 02/12/2023]
Abstract
The current study focused on developing a multifunctional Mg-based biodegradable composite that mitigates the trade-off between strength, antibacterial, and cytotoxicity behavior for orthopedic bone implants. The composite has been reinforced with natural mineral-based Hydroxyapatite and rare earth oxide (REO): Neodymium oxide. The effect of different concentrations of REO on the mechanical, antibacterial, and corrosion properties was analyzed. The antibacterial properties were assessed against gram-positive B. Subtilis and gram-negative E. Coli bacterial pathogens. Moreover, the cytotoxicity of the composites was assessed via Hemolysis percentage calculations. In addition, the microstructure characterization was performed via FESEM, XRD, and EDS techniques, and different intermetallic phase formations were recorded. Contact angle measurements were done via the sessile drop method to analyze the impact of rare earth oxide on the surface properties of the synthesized composites and their relationship with bacterial adhesion. The corrosion studies and swelling rates were performed under PBS and DMEM solutions. The composite with the addition of 1.5% REO outperformed the experiments with a compressive strength of 126.4 MPa, and a corrosion rate less than 0.2 mm/yr. The corrosion rates and degree of swelling were seen to be more stable in DMEM solution as compared to PBS. Improved antibacterial rates were observed against both pathogens after the addition of REO along with a hemolysis percentage less than 5% for Mg-HA-1.5Nd2 O3 . The composites showed increased hydrophobicity (>75%) by the addition of 1.5% REO. Hence, it was concluded that REO (Nd2 O3 ) addition to the Mg-Hydroxyapatite composite is a feasible choice as a biomaterial for bone implant applications.
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Affiliation(s)
- Divyanshu Aggarwal
- Department of Mechanical Engineering, Thapar Institute of Engineering and Technology, Patiala, India
| | - Vinod Kumar
- Department of Mechanical Engineering, Thapar Institute of Engineering and Technology, Patiala, India
| | - Siddharth Sharma
- Department of Biotechnology Engineering, Thapar Institute of Engineering and Technology, Patiala, India
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2
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Xu S, Liu C, Gao Y, Jiang S, Wan Y, Chen Z. Influence of Long-Period Stacked Ordered Phases on Inductive Impedance of Mg-Gd-Y-Zn-Zr-Ag Alloys. MATERIALS (BASEL, SWITZERLAND) 2023; 16:640. [PMID: 36676375 PMCID: PMC9863852 DOI: 10.3390/ma16020640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/01/2023] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
In this paper, the influence of long-period stacked ordered (LPSO) phases on the electrochemical impedance spectroscopy (EIS) of a Mg-Gd-Y-Zn-Zr-Ag alloy in 0.9 wt.% NaCl was investigated. The Mg-6Gd-3Y-1Zn-0.5Zr-0.3Ag (wt.%) alloy samples with and without LPSO phases in the grain interior (HOMO and LPSO, respectively) were prepared using different heat treatments. The EIS results showed that both the HOMO and LPSO samples' Nyquist diagrams contained two inductive loops. However, in the Nyquist plots of the LPSO samples, the inductive loops at 1.71-0.67 Hz appeared in the first quadrant rather than the fourth quadrant. Analysis of the fitting parameters illustrated that the abnormal shape of the inductive loops is related to greater values of the surface film capacitance Cf and double layer capacitance Cdl in the LPSO samples. Further investigations through corrosion morphology observation indicated that the greater values of Cf and Cdl in the LPSO samples resulted from the existence of intragranular LPSO phases that created more film-free areas. The above results show that a better understanding of the relationship between the inductive impedance and corrosion morphology of a Mg-6Gd-3Y-1Zn-0.5Zr-0.3Ag alloy in 0.9 wt.% NaCl solution was attained.
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Affiliation(s)
- Shiyuan Xu
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
| | - Chuming Liu
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
| | - Yonghao Gao
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
| | - Shunong Jiang
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
| | - Yingchun Wan
- Light Alloy Research Institute, Central South University, Changsha 410083, China
| | - Zhiyong Chen
- School of Materials Science and Engineering, Central South University, Changsha 410083, China
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Tokunaga T, Hagihara K, Yamasaki M, Mayama T, Yamamoto K, Narimoto H, Kida T, Kawamura Y, Nakano T. Kink-band formation in the directionally-solidified Mg/LPSO two-phase alloys. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2022; 23:752-766. [PMID: 36353263 PMCID: PMC9639545 DOI: 10.1080/14686996.2022.2137696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/07/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
The variation in the mechanical properties with the volume fraction of the long-period stacking ordered (LPSO) phase in directionally solidified (DS) Mg/LPSO two-phase alloys was examined. Unexpectedly, the yield stress of the DS alloys increases non-monotonically with an increase in the volume fraction of the LPSO phase. The LPSO phase is considered an effective strengthening phase in Mg alloys, when the stress is applied parallel to the growth direction. Nevertheless, the highest strength was obtained in alloys with 61-86 vol.% of the LPSO phase, which was considerably higher than that in the LPSO single-phase alloy. It was clarified that this complicated variation in the yield stress was generated from the change in the formation stress of kink bands, which varied with the thickness of the LPSO-phase grains. Furthermore, the coexistence of Mg in the LPSO phase alloy induced the homogeneous formation of kink bands in the alloys, leading to the enhancement of the 'kink-band strengthening'. The results demonstrated that microstructural control is significantly important in Mg/LPSO two-phase alloys, in which both phases exhibit strong plastic anisotropy, to realize the maximum mechanical properties.
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Affiliation(s)
- Toko Tokunaga
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Nagoya, Aichi, Japan
| | - Koji Hagihara
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Nagoya, Aichi, Japan
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Suita, Osaka, Japan
| | - Michiaki Yamasaki
- Magnesium Research Center & Department of Materials Science, Kumamoto University, Kumamoto, Japan
| | - Tsuyoshi Mayama
- Magnesium Research Center & Department of Materials Science, Kumamoto University, Kumamoto, Japan
| | - Kazuki Yamamoto
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Nagoya, Aichi, Japan
| | - Hiroki Narimoto
- Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
| | - Taiki Kida
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Suita, Osaka, Japan
| | - Yoshihito Kawamura
- Magnesium Research Center & Department of Materials Science, Kumamoto University, Kumamoto, Japan
| | - Takayoshi Nakano
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Suita, Osaka, Japan
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Li H, Wang P, Lin G, Huang J. The role of rare earth elements in biodegradable metals: A review. Acta Biomater 2021; 129:33-42. [PMID: 34022465 DOI: 10.1016/j.actbio.2021.05.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/14/2021] [Accepted: 05/11/2021] [Indexed: 11/26/2022]
Abstract
Compared with non-degradable metals, biodegradable metals, as a new generation of medical metallic materials, do not require secondary, which reduces the pain and economic burden of patients. However, currently developed biodegradable metals, including iron-based alloys, magnesium-based alloys, and zinc-based alloys, have deficiencies in their corrosion rates and mechanical properties, which have severely restricted the clinical application of biodegradable metals. So there is an urgent need to improve their mechanical properties, degradation behaviors and biocompatibility. Alloying is an important way to modify biodegradable metal materials. Rare earth elements (REEs) as alloying elements in biodegradable metals have attracted a great deal of attention due to their unique atomic structure and properties. The present review summarizes the effects of rare earth elements on the mechanical properties, degradation behaviors, and biocompatibility of biodegradable metals. Moreover, future research directions of rare earth elements alloying biodegradable metals are also prospected. STATEMENT OF SIGNIFICANCE: As a new generation of biomedical metallic materials, biodegradable metals have become a hot research topic in recent years as they can degrade completely in human body and thus avoid further secondary surgery. However, these biodegradable metal systems have drawbacks in clinical applications. Alloying is an important method to improve the properties of biodegradable metals. Among the various alloying elements, Rare Earth alloying elements are usually considered due to their unique atomic structure and properties. The present review summarizes the recent research progress of Rare Earth alloying elements in biodegradable metals. The effects of the Rare Earth alloying elements on mechanical properties, biodegradation behavior and biocompatibility of biodegradable metals are presented and discussed in detail.
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Özarslan S, Şevik H, Sorar İ. Microstructure, mechanical and corrosion properties of novel Mg-Sn-Ce alloys produced by high pressure die casting. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110064. [PMID: 31546403 DOI: 10.1016/j.msec.2019.110064] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 07/05/2019] [Accepted: 08/08/2019] [Indexed: 10/26/2022]
Abstract
The aim of this study was to investigate the effect of adding 1, 2 and 4% wt of cerium on the microstructure, mechanical and corrosion properties of high pressure die casting (HPDC) Mg-4Sn alloys. Microstructure analyses of the alloys were carried out using X-Ray Diffraction (XRD) and Scanning Electron microscopy (SEM). The corrosion behaviors were determined with the potentiodynamic polarization and immersion tests in Hanks Balanced Salt Solution (HBSS), which is used as the artificial body fluid. The microstructural results showed that the addition of Ce to the main alloy creates new intermetallic phases (Ce5Sn4 and MgSnCe). In addition, Ce addition provided effectively the grain refinement of the alloys. While the hardness and yield strength of the Mg-4Sn alloy enhanced continuously with increasing Ce content, the tensile strength and elongation reached up to 2% wt. The corrosion resistance of the main alloy was improved by the addition of 1% wt of Ce. However, the Ce content, which is more than 1% wt decreased corrosion resistance.
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Affiliation(s)
- Selma Özarslan
- Hatay Mustafa Kemal University, Science and Art Faculty, Department of Physics, 31034, Hatay, Turkey.
| | - Hüseyin Şevik
- Mersin University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, Mersin 33343, Turkey.
| | - İdris Sorar
- Hatay Mustafa Kemal University, Science and Art Faculty, Department of Physics, 31034, Hatay, Turkey
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Zhang X, Dai J, Dong Q, Ba Z, Wu Y. Corrosion behavior and mechanical degradation of as‐extruded Mg–Gd–Zn–Zr alloys for orthopedic application. J Biomed Mater Res B Appl Biomater 2019; 108:698-708. [DOI: 10.1002/jbm.b.34424] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 05/10/2019] [Accepted: 05/17/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaobo Zhang
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing China
| | - Jianwei Dai
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing China
| | - Qiangsheng Dong
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing China
| | - Zhixin Ba
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing China
| | - Yujuan Wu
- National Engineering Research Center of Light Alloys Net FormingShanghai Jiao Tong University Shanghai China
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Song J, Jin P, Li M, Liu J, Wu D, Yao H, Wang J. Antibacterial properties and biocompatibility in vivo and vitro of composite coating of pure magnesium ultrasonic micro-arc oxidation phytic acid copper loaded. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:49. [PMID: 30993460 DOI: 10.1007/s10856-019-6251-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 08/17/2018] [Indexed: 06/09/2023]
Abstract
Bone infection and implant secondary removal remains a clinical challenge. We used ultrasonic micro-arc oxidation (UMAO) and conversion of phytic acid copper plating to prepare a pure magnesium polyhydric biofilm; we evaluated the surface microstructures, phase, element composition, and wettability of the film in vitro. The antibacterial activity of films with different Cu contents was confirmed by coating method, imaging examination, and microbiological cultures in vitro. The biocompatibility of biofilms was confirmed by cell proliferation, vitality, and morphology assays in vitro and histological evaluation in vivo. MC3T3-E1 cells were co-cultured with different films to assess cell viability on the films. The results showed that the mass fraction of Cu increased with increasing time of copper plating, and the surface of the Cu group was more dense and uniform. Additionally, copper coating significantly inhibited the growth of E. coli and Staphylococcus aurous. We also found that the adhesion, proliferation, and differentiation of the cells on the surface of copper plating were enhanced. Copper implantation of animals in vivo showed fine ability to promote bone growth. Antibacterial activity and biocompatibility of pure magnesium UMAO-phytic acid-Cu3min implant film are excellent, so the film has potential application value in the treatment of bone implantation.
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Affiliation(s)
- Jiaqi Song
- Jiamusi University School of Stomatology, Jiamusi, China
| | - Pengli Jin
- Jiamusi University School of Materials Science and Engineering, Jiamusi, China
| | - Muqin Li
- Jiamusi University School of Materials Science and Engineering, Jiamusi, China.
| | - Jiguang Liu
- Jiamusi University School of Materials Science and Engineering, Jiamusi, China
| | - Dongmei Wu
- Jiamusi University College of Pharmacy, Jiamusi, China
| | - Haitao Yao
- Jiamusi University School of Basic Medical Science, Jiamusi, China
| | - Jiaqi Wang
- Second Affiliated Stomatological Hospital of Jiamusi University, Jiamusi, China
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8
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Riaz U, Shabib I, Haider W. The current trends of Mg alloys in biomedical applications-A review. J Biomed Mater Res B Appl Biomater 2018; 107:1970-1996. [PMID: 30536973 DOI: 10.1002/jbm.b.34290] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 11/10/2018] [Accepted: 11/15/2018] [Indexed: 01/25/2023]
Abstract
Magnesium (Mg) has emerged as an ideal alternative to the permanent implant materials owing to its enhanced properties such as biodegradation, better mechanical strengths than polymeric biodegradable materials and biocompatibility. It has been under investigation as an implant material both in cardiovascular and orthopedic applications. The use of Mg as an implant material reduces the risk of long-term incompatible interaction of implant with tissues and eliminates the second surgical procedure to remove the implant, thus minimizes the complications. The hurdle in the extensive use of Mg implants is its fast degradation rate, which consequently reduces the mechanical strength to support the implant site. Alloy development, surface treatment, and design modification of implants are the routes that can lead to the improved corrosion resistance of Mg implants and extensive research is going on in all three directions. In this review, the recent trends in the alloying and surface treatment of Mg have been discussed in detail. Additionally, the recent progress in the use of computational models to analyze Mg bioimplants has been given special consideration. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1970-1996, 2019.
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Affiliation(s)
- Usman Riaz
- School of Engineering and Technology, Central Michigan University, Mount Pleasant, Michigan, 48859
| | - Ishraq Shabib
- School of Engineering and Technology, Central Michigan University, Mount Pleasant, Michigan, 48859.,Science of Advanced Materials, Central Michigan University, Mount Pleasant, Michigan, 48859
| | - Waseem Haider
- School of Engineering and Technology, Central Michigan University, Mount Pleasant, Michigan, 48859.,Science of Advanced Materials, Central Michigan University, Mount Pleasant, Michigan, 48859
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9
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Mechanical Properties and Corrosion Behavior of WZ73 Mg Alloy/SiCp Composite Fabricated by Stir Casting Method. METALS 2018. [DOI: 10.3390/met8060424] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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10
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High degradation rate of Fe-20Mn-based bio-alloys by accumulative cryo-rolling and annealing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Chiu C, Lu CT, Chen SH, Ou KL. Effect of Hydroxyapatite on the Mechanical Properties and Corrosion Behavior of Mg-Zn-Y Alloy. MATERIALS 2017; 10:ma10080855. [PMID: 28773216 PMCID: PMC5578221 DOI: 10.3390/ma10080855] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 07/20/2017] [Accepted: 07/21/2017] [Indexed: 01/04/2023]
Abstract
Mg-Zn-Y alloys with a long period stacking ordered (LPSO) phase are potential candidates for biodegradable implants; however, an unfavorable degradation rate has limited their applications. Hydroxyapatite (HA) has been shown to enhance the corrosion resistance of Mg alloys. In this study, Mg97Zn1Y2-0.5 wt% HA composite was synthesized and solution treated at 500 °C for 10 h. The corrosion behavior of the composite was studied by electrochemical and immersion tests, while the mechanical properties were investigated by a tensile test. Addition of HA particles improves the corrosion resistance of Mg97Zn1Y2 alloy without sacrificing tensile strength. The improved corrosion resistance is due to the formation of a compact Ca-P surface layer and a decrease of the volume fraction of the LPSO phase, both resulting from the addition of HA. After solution-treatment, the corrosion resistance of the composite decreases. This is due to the formation of a more extended LPSO phase, which weakens its role as a corrosion barrier in protecting the Mg matrix.
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Affiliation(s)
- Chun Chiu
- Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan.
| | - Chih-Te Lu
- Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan.
| | - Shih-Hsun Chen
- Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan.
| | - Keng-Liang Ou
- Department of Dentistry, Taipei Medical University Hospital, Taipei 110, Taiwan.
- Department of Dentistry, Cathay General Hospital, Taipei 106, Taiwan.
- Department of Dentistry, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan.
- 3D Global Biotech Inc., New Taipei City 221, Taiwan.
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BI G, JIANG J, ZHANG F, FANG D, LI Y, MA Y, HAO Y. Microstructure evolution and corrosion properties of Mg-Dy-Zn alloy during cooling after solution treatment. J RARE EARTH 2016. [DOI: 10.1016/s1002-0721(16)60117-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Zhang X, Wu G, Peng X, Li L, Feng H, Gao B, Huo K, Chu PK. Mitigation of Corrosion on Magnesium Alloy by Predesigned Surface Corrosion. Sci Rep 2015; 5:17399. [PMID: 26615896 PMCID: PMC4663789 DOI: 10.1038/srep17399] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 10/29/2015] [Indexed: 11/18/2022] Open
Abstract
Rapid corrosion of magnesium alloys is undesirable in structural and biomedical applications and a general way to control corrosion is to form a surface barrier layer isolating the bulk materials from the external environment. Herein, based on the insights gained from the anticorrosion behavior of corrosion products, a special way to mitigate aqueous corrosion is described. The concept is based on pre-corrosion by a hydrothermal treatment of Al-enriched Mg alloys in water. A uniform surface composed of an inner compact layer and top Mg-Al layered double hydroxide (LDH) microsheet is produced on a large area using a one-step process and excellent corrosion resistance is achieved in saline solutions. Moreover, inspired by the super-hydrophobic phenomenon in nature such as the lotus leaves effect, the orientation of the top microsheet layer is tailored by adjusting the hydrothermal temperature, time, and pH to produce a water-repellent surface after modification with fluorinated silane. As a result of the trapped air pockets in the microstructure, the super-hydrophobic surface with the Cassie state shows better corrosion resistance in the immersion tests. The results reveal an economical and environmentally friendly means to control and use the pre-corrosion products on magnesium alloys.
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Affiliation(s)
- Xuming Zhang
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Guosong Wu
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Xiang Peng
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Limin Li
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Hongqing Feng
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Biao Gao
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Kaifu Huo
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Paul K. Chu
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
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Jiao Y, Zhang J, Kong P, Zhang Z, Jing Y, Zhuang J, Wang W, Zhang L, Xu C, Wu R, Zhang M. Enhancing the performance of Mg-based implant materials by introducing basal plane stacking faults. J Mater Chem B 2015; 3:7386-7400. [PMID: 32262765 DOI: 10.1039/c5tb01060h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One of the keys to allowing Mg alloys to serve as biodegradable materials is how to balance their degradation behaviours and mechanical properties in physiological environment. In this study, a novel Mg-6Ho-0.5Zn alloy (wt%) containing profuse basal plane stacking faults (SFs) is prepared. This newly-developed alloy with SFs exhibiting uniform corrosion behaviour, low corrosion rate and high mechanical properties, as compared to the classic Mg-Ho based alloys (Mg-6Ho and Mg-6Ho-1.5Zn). Furthermore, the Mg-6Ho-0.5Zn alloy shows no significant toxicity to Saos-2 cells. An original uniform corrosion mechanism is proposed by combining the special defect structure, orientation of SFs and promptly effective corrosion film. The development of the new microstructure for Mg-Ho based alloys with desirable corrosion performance has important implications in developing novel degradable Mg-based implant materials.
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Affiliation(s)
- Yufeng Jiao
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
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15
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Zhang J, Xu C, Jing Y, Lv S, Liu S, Fang D, Zhuang J, Zhang M, Wu R. New horizon for high performance Mg-based biomaterial with uniform degradation behavior: Formation of stacking faults. Sci Rep 2015; 5:13933. [PMID: 26349676 PMCID: PMC4563571 DOI: 10.1038/srep13933] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Accepted: 08/12/2015] [Indexed: 11/08/2022] Open
Abstract
Designing the new microstructure is an effective way to accelerate the biomedical application of magnesium (Mg) alloys. In this study, a novel Mg-8Er-1Zn alloy with profuse nano-spaced basal plane stacking faults (SFs) was prepared by combined processes of direct-chill semi-continuous casting, heat-treatment and hot-extrusion. The formation of SFs made the alloy possess outstanding comprehensive performance as the biodegradable implant material. The ultimate tensile strength (UTS: 318 MPa), tensile yield strength (TYS: 207 MPa) and elongation (21%) of the alloy with SFs were superior to those of most reported degradable Mg-based alloys. This new alloy showed acceptable biotoxicity and degradation rate (0.34 mm/year), and the latter could be further slowed down through optimizing the microstructure. Most amazing of all, the uniquely uniform in vitro/vivo corrosion behavior was obtained due to the formation of SFs. Accordingly we proposed an original corrosion mechanism for the novel Mg alloy with SFs. The present study opens a new horizon for developing new Mg-based biomaterials with highly desirable performances.
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Affiliation(s)
- Jinghuai Zhang
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Chi Xu
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yongbin Jing
- Department of orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Heilongjiang Province, China
| | - Shuhui Lv
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
| | - Shujuan Liu
- Department of Materials Physics and Chemistry, Harbin Institute of Technology, Harbin 150001, China
| | - Daqing Fang
- School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, China
| | - Jinpeng Zhuang
- Department of orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Milin Zhang
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Ruizhi Wu
- Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
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