Effect of Annealing Temperature on Microstructure and Corrosion Behavior of CoCrNi Medium-entropy Alloy in 3.5 wt.% NaCl Solution

被引：4
作者：
He, Feng [1 ]
Le, Zhongping [1 ]
Zhu, Min [1 ]
Liu, Li [2 ]
Zhang, Xiang [3 ]
Zhu, Guotu [4 ]
机构：
[1] Zhejiang Sci Tech Univ, Sch Mech Engn & Automat, Hangzhou 310018, Peoples R China
[2] Interplex Elect HZ Co Ltd, Hangzhou 310018, Peoples R China
[3] Zhejiang Zheneng Nat Gas Operat Co Ltd, Hangzhou 310052, Peoples R China
[4] Changshan Chengxin Bearing Co Ltd, Changshan 324000, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2022年 / 17卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Medium-entropy alloy; Corrosion; Microstructure; Annealing treatment;
D O I：
10.20964/2022.05.41
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
This work investigates the effect of annealing temperature on corrosion performance of CoCrNi medium-entropy alloy (MEA) in 3.5 wt.% NaCl solution. The corrosion property of CoCrNi MEA improves with the increase of annealing temperature. The corrosion behavior of the annealed MEA is associated with grain size and passive film. The difference in electrochemical activity between substrate and oxide inclusion is the main cause of micro-galvanic corrosion, which facilitates the dissolution of matrix and induces the formation of pits. The matrix (anode) and oxide inclusion (cathode) both experience the selective dissolution of Co, except that oxide also undergoes the marked dissolution of Ni.
引用
收藏
页数：8
相关论文
共 17 条
[1]   Effect of nitrogen on corrosion behaviour of a novel high nitrogen medium-entropy alloy CrCoNiN manufactured by pressurized metallurgy [J].
Feng, Hao ;
Li, Huabing ;
Wu, Xiaolei ;
Jiang, Zhouhua ;
Zhao, Si ;
Zhang, Tao ;
Xu, Dake ;
Zhang, Shucai ;
Zhu, Hongchun ;
Zhang, Binbin ;
Yang, Muxin .
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2018, 34 (10) :1781-1790
[2]   Exceptional damage-tolerance of a medium-entropy alloy CrCoNi at cryogenic temperatures [J].
Gludovatz, Bernd ;
Hohenwarter, Anton ;
Thurston, Keli V. S. ;
Bei, Hongbin ;
Wu, Zhenggang ;
George, Easo P. ;
Ritchie, Robert O. .
NATURE COMMUNICATIONS, 2016, 7
[3]   Study on passivation and erosion-enhanced corrosion resistance by Mott-Schottky analysis [J].
Guo, H. X. ;
Lu, B. T. ;
Luo, J. L. .
ELECTROCHIMICA ACTA, 2006, 52 (03) :1108-1116
[4]   DISSOLUTION RATES OF IRON AND CHROMIUM AND FE-CR-ALLOYS IN THE PASSIVE STATE [J].
HEINE, B ;
KIRCHHEIM, R .
CORROSION SCIENCE, 1990, 31 :533-538
[5]   Reasons for the superior mechanical properties of medium-entropy CrCoNi compared to high-entropy CrMnFeCoNi [J].
Laplanche, G. ;
Kostka, A. ;
Reinhart, C. ;
Hunfeld, J. ;
Eggeler, G. ;
George, E. P. .
ACTA MATERIALIA, 2017, 128 :292-303
[6]   Long-term corrosion monitoring of carbon steels and environmental correlation analysis via the random forest method [J].
Li, Qing ;
Xia, Xiaojian ;
Pei, Zibo ;
Cheng, Xuequn ;
Zhang, Dawei ;
Xiao, Kui ;
Wu, Jun ;
Li, Xiaogang .
NPJ MATERIALS DEGRADATION, 2022, 6 (01)
[7]   Improved anti-corrosion behaviour of an inorganic passive film on hot-dip galvanised steel by modified graphene oxide incorporation [J].
Liu, Qi ;
Zhang, Xiaoran ;
Zhou, Wenhao ;
Ma, Ruina ;
Du, An ;
Fan, Yongzhe ;
Zhao, Xue ;
Cao, Xiaoming .
CORROSION SCIENCE, 2020, 174
[8]   Superior low-cycle fatigue properties of CoCrNi compared to CoCrFeMnNi [J].
Lu, Kaiju ;
Chauhan, Ankur ;
Walter, Mario ;
Tirunilai, Aditya Srinivasan ;
Schneider, Mike ;
Laplanche, Guillaume ;
Freudenberger, Jens ;
Kauffmann, Alexander ;
Heilmaier, Martin ;
Aktaa, Jarir .
SCRIPTA MATERIALIA, 2021, 194
[9]   Influence of carbon on the corrosion behaviour of interstitial equiatomic CoCrFeMnNi high-entropy alloys in a chlorinated concrete solution [J].
Luo, Hong ;
Zou, Shiwen ;
Chen, Ying-Hsuan ;
Li, Zhiming ;
Du, Cuiwei ;
Li, Xiaogang .
CORROSION SCIENCE, 2020, 163
[10]   Corrosion behavior of an equiatomic CoCrFeMnNi high-entropy alloy compared with 304 stainless steel in sulfuric acid solution [J].
Luo, Hong ;
Li, Zhiming ;
Mingers, Andrea M. ;
Raabe, Dierk .
CORROSION SCIENCE, 2018, 134 :131-139
12