期刊
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
卷 80, 期 -, 页码 217-233出版社
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2020.11.044
关键词
High-entropy alloys; Corrosion behavior; Corrosion mechanism; Passive film; Alloy design
资金
- National Key Research and Development Program of China [2017YFB0702100]
- National Natural Science Foundation of China [52071014]
High-entropy alloys (HEAs) have emerged as a research hotspot in the field of metal materials in the past decade. They exhibit much better corrosion resistance than traditional corrosion-resistant metal materials and the correlation among composition, microstructure, and corrosion resistance of HEAs has been revealed. The influence of heat treatment, anodizing treatment, and preparation methods on the corrosion behavior of HEAs has also been elaborated.
In the past decade, the sudden rise of high-entropy alloys (HEAs) has become a research hotspot in the domain of metal materials. HEAs break through the design concept of traditional single-principal element alloys, and the four core effects, especially the high entropy and cocktail effects, make HEAs exhibit much better corrosion resistance than traditional corrosion-resistant metal materials, e.g., stainless steels, copper-nickel alloys, and high-nickel alloys. Currently, the corrosion resistance of HEAs causes great concern in the field of corrosion research. This article reviews the corrosion behavior and mechanism of HEAs in various aqueous solutions, revealing the correlation among the composition, microstructure and corrosion resistance of HEAs, and elaborates the influence of heat treatment, anodizing treatment and preparation methods on the corrosion behavior of HEAs. This knowledge will benefit the on-demand design of corrosion-resistant HEAs, which is an important trend of future development. Finally, perspectives regarding the corrosion research of HEAs are outlined to guide future studies. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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