1
|
Study on the corrosion behavior and pitting mechanism of Ni-based alloy coatings in chloride ion media. J Solid State Electrochem 2023. [DOI: 10.1007/s10008-022-05367-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
2
|
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, SWITZERLAND) 2022; 16:56. [PMID: 36614392 PMCID: PMC9821732 DOI: 10.3390/ma16010056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [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.
Collapse
|
3
|
Investigations on the passive and pitting behaviors of 17-4 PH martensitic stainless steel containing Al2O3 inclusions in chlorine environment. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
4
|
Meng Z, Shi Y, Qiao Z, Yang J, Wang L. Study on microstructure and corrosion resistance of Ti-doped nickel-based alloy coatings. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05208-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
5
|
Electrochemical Behavior and Passive Film Properties of Hastelloy C22 Alloy, Laser-Cladding C22 Coating, and Ti–6Al–4V Alloy in Sulfuric Acid Dew-Point Corrosion Environment. METALS 2022. [DOI: 10.3390/met12040683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
The electrochemical behavior and passive film properties of Hastelloy C22 alloy, laser-cladding C22 coating, and Ti–6Al–4V alloy in sulfuric acid dew-point corrosion environment were investigated through a combination of electrochemical measurements and surface analyses. The C22 alloy and laser-cladding C22 coating exhibited similar passivation and repassivation behavior without pitting corrosion, resulting from a similar passive film with a bilayer structure consisting of a Cr2O3-dominated compact inner layer and a porous outer layer containing oxides of Mo and hydroxides of Ni and Cr. The slightly poorer corrosion resistance and higher sensitivity to localized corrosion exhibited by the C22 coating were attributed to the microscale heterogeneity of the passive film resulting from the element segregation in the microstructure introduced by the laser-cladding process. The corrosion of the TC4 alloy performed as the preference dissolution of the β phase. Compared to the C22 alloy and C22 coating, the TC4 alloy exhibited more stable passivation behavior but poorer corrosion resistance, which is attributed to a compact but less protective single-layer passive film consisting of oxides of Ti and Al. An increase in temperature degrades passive film stability and accelerates the charge transfer process.
Collapse
|
6
|
Effect of Cr on Corrosion Behavior of Laser Cladding Ni-Cr-Mo Alloy Coatings in Sulfuric Acid Dew Point Corrosion Environment. COATINGS 2022. [DOI: 10.3390/coatings12040421] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ni-Cr-Mo alloy coatings with different content of Cr element were produced on carbon structural steel by laser cladding. Coatings exhibited similar phase composition containing γ-Ni solid solution and similar microstructure composed of primary grains and eutectics with segregated Mo. Corrosion behavior of coatings in a sulfuric acid dew point corrosion environment were investigated through the combination of immersion test, electrochemical measurements, and surface analysis. Coatings exhibited similar passive behavior and passive film with a bilayer structure consisting of a compact inner layer and a porous outer layer. An increase in Cr resulted in a more protective passive film with thicker and more compacting inner layer. However, the corrosion resistance was firstly degraded as the content of Cr increased from 18 wt.% to 22 wt.%, and then improved as the content of Cr increased from 22 wt.% to 26 wt.%. This phenomenon was attributed to the competition effect between the increase in Cr and relative decrease in Ni.
Collapse
|
7
|
Electrochemical Study of Stainless Steel Anchor Bolt Corrosion Initiation in Corrosive Underground Water. Processes (Basel) 2021. [DOI: 10.3390/pr9091553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Application of low-nickel stainless steel anchor was one of the economical and effective methods to solve the durability problem of slope engineering. At present, there are scarce reports about corrosion characteristics of low-nickel stainless steel in various underground waters. For investigating the corrosion initiation of stainless steel anchor bolt in corrosive underground water, the effect of SO42−, HCO3− and pH value on the corrosion behavior of 201 low-nickel stainless steel was studied via electrochemical methods. As the SO42− concentration, HCO3− concentration or pH value increase, the open circuit potential and polarization resistance increase, while the double-layer capacitance, donor density and passive current density decrease. The results indicate that corrosion is inhibited by SO42−, HCO3− and OH− in underground water. In addition, the inhibitive efficiency of SO42− and HCO3− increases with the SO42− and HCO3− concentration.
Collapse
|
8
|
Size matching effect between anion vacancies and halide ions in passive film breakdown on copper. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.10.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
9
|
Man C, Dong C, Cui Z, Xiao K, Yu Q, Li X. Characterization of the Outer Layer Nanostructure in the Electrochemical Response of Stainless Steel in Aqueous Sodium Hydroxide. ANAL LETT 2018. [DOI: 10.1080/00032719.2017.1378228] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Cheng Man
- Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, China
| | - Chaofang Dong
- Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, China
| | - Zhongyu Cui
- Institute of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, China
| | - Kui Xiao
- Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, China
| | - Qiang Yu
- Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, China
| | - Xiaogang Li
- Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, China
- Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, China
| |
Collapse
|
10
|
Understanding multi-element alloy passivation in acidic solutions using operando methods. Electrochem commun 2017. [DOI: 10.1016/j.elecom.2017.05.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
11
|
Man C, Dong C, Liang J, Xiao K, Yu Q, Li X. Characterization of the Passive Film and Corrosion of Martensitic AM355 Stainless Steel. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1210617] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Cheng Man
- Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, China
| | - Chaofang Dong
- Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, China
| | - Jianxiong Liang
- Institute for Special Steel Central, Iron and Steel Research Institute, Beijing, China
| | - Kui Xiao
- Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, China
| | - Qiang Yu
- Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, China
- Institute for Special Steel Central, Iron and Steel Research Institute, Beijing, China
| | - Xiaogang Li
- Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, China
- Institute of Materials Technology, Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, China
| |
Collapse
|
12
|
Luo H, Dong C, Xiao K, Li X. The passive behaviour of ferritic stainless steel containing alloyed tin in acidic media. RSC Adv 2016. [DOI: 10.1039/c5ra23698c] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The addition of Sn will not change the microstructure of stainless steel, 0.3 wt% Sn (a) and 0.1 wt% Sn (b), the equiaxed ferrite grain structure and a small amount of inclusions can be observed.
Collapse
Affiliation(s)
- Hong Luo
- College of Mechanics and Materials
- Hohai University
- 210098 Nanjing
- China
| | - Chaofang Dong
- Institute of Advanced Materials and Technology
- University of Science and Technology Beijing
- 100083 Beijing
- China
| | - Kui Xiao
- Institute of Advanced Materials and Technology
- University of Science and Technology Beijing
- 100083 Beijing
- China
| | - Xiaogang Li
- Institute of Advanced Materials and Technology
- University of Science and Technology Beijing
- 100083 Beijing
- China
| |
Collapse
|
13
|
Electrochemical and passivation behavior investigation of ferritic stainless steel in simulated concrete pore media. Data Brief 2015; 5:171-8. [PMID: 26501086 PMCID: PMC4588451 DOI: 10.1016/j.dib.2015.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 08/09/2015] [Accepted: 08/19/2015] [Indexed: 11/23/2022] Open
Abstract
The applications of stainless steel are one of the most reliable solutions in concrete structures to reduce chloride-induced corrosion problems and increase the structures service life, however, due to high prices of nickel, especially in many civil engineering projects, the austenitic stainless steel is replaced by the ferritic stainless steels. Compared with austenite stainless steel, the ferritic stainless steel is known to be extremely resistant of stress corrosion cracking and other properties. The good corrosion resistance of the stainless steel is due to the formation of passive film. While, there is little literature about the electrochemical and passive behavior of ferritic stainless steel in the concrete environments. So, here, we present the several corrosion testing methods, such as the potentiodynamic measurements, EIS and Mott-Schottky approach, and the surface analysis methods like XPS and AES to display the passivation behavior of 430 ferritic stainless steel in alkaline solution with the presence of chloride ions. These research results illustrated a simple and facile approach for studying the electrochemical and passivation behavior of stainless steel in the concrete pore environments.
Collapse
|