Unusually high corrosion resistance in MoxCrNiCo medium entropy alloy enhanced by acidity in aqueous solution

doi:10.1016/j.jmst.2022.07.061

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Unusually high corrosion resistance in MoxCrNiCo medium entropy alloy enhanced by acidity in aqueous solution
	Shuang S 9; Lyu, GJ 7,8; Chung D 9; Wang XZ 6; Gao X 9; Mao HH 4,5; Li WP 3; He QF 9; Guo BS 2; Zhong XY 3
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2023-03-10
卷号	139 页码:59-68
关键词	Corrosion Passivation Alloy design Multi-principal element alloys Medium-entropy alloys
ISSN号	1005-0302
DOI	10.1016/j.jmst.2022.07.061
通讯作者	Yang, Y.(yonyang@city.edu.hk)
英文摘要	High corrosion resistance of alloys is essential for their structural applications; however, most alloys suffer from degradation of their corrosion resistance with the increasing acidity of their surround-ings. Nonetheless, we developed a series of medium-entropy alloys (MEAs) in this work, which ex-hibit high strength, superior fracture toughness and ultra-high corrosion resistance, outperforming the variety of corrosion resistant alloys hitherto reported. Most interestingly, our MEAs exhibit an unusual anti-corrosion behavior and their corrosion resistance increases with acidity in Cl- containing solutions. Through extensive thermodynamic calculations, density functional theory (DFT) simulations and experi-ments, we reveal that the unusual anti-corrosion behavior of our MEAs can be attributed to their surface chemical complexity, which facilitates the physio-chemical-absorption of H2O and O 2 and thus the rapid formation of metastable medium entropy passive films that contain the lowest amount of defects, as compared to the passive films on conventional alloys reported in the literature.(c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
分类号	一类
资助项目	Research Grant Council (RGC), Hong Kong Government, through General Research Fund (RGC)[CityU11213118] ; Research Grant Council (RGC), Hong Kong Government, through General Research Fund (RGC)[CityU11200719] ; Research Grant Council (RGC), Hong Kong Government, through General Research Fund (RGC)[CityU11209317]
WOS关键词	CR-MO ALLOYS ; ELECTROCHEMICAL-BEHAVIOR ; STAINLESS-STEEL ; PASSIVE FILM ; PITTING CORROSION ; PIPELINE STEEL ; ALUMINUM-ALLOY ; POINT-DEFECT ; CHLORIDE-ION ; OXIDE-FILMS
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000880084300006
资助机构	Research Grant Council (RGC), Hong Kong Government, through General Research Fund (RGC)
其他责任者	Yang, Y.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90816]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.City Univ Hong Kong, Coll Engn, Dept Adv Design & Syst Engn, Kowloon Tong,Kowloon, Hong Kong, Peoples R China 2.Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Peoples R China; 3.City Univ Hong Kong, Coll Engn, Dept Mat Sci & Engn, Kowloon Tong,Kowloon, Hong Kong, Peoples R China; 4.Thermocalc Software, Rasunday 18, SE-16767 Solna, Sweden; 5.KTH, Dept Mat Sci & Engn, Unit Struct, SE-10044 Stockholm, Sweden; 6.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Ctr Adv Lubricat & Seal Mat, Xian 710072, Peoples R China; 7.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China; 8.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 9.City Univ Hong Kong, Coll Engn, Dept Mech Engn, Kowloon Tong,Kowloon, Hong Kong, Peoples R China;
推荐引用方式 GB/T 7714	Shuang S,Lyu, GJ,Chung D,et al. Unusually high corrosion resistance in MoxCrNiCo medium entropy alloy enhanced by acidity in aqueous solution[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,139:59-68.
APA	Shuang S.,Lyu, GJ.,Chung D.,Wang XZ.,Gao X.,...&Yang Y.(2023).Unusually high corrosion resistance in MoxCrNiCo medium entropy alloy enhanced by acidity in aqueous solution.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,139,59-68.
MLA	Shuang S,et al."Unusually high corrosion resistance in MoxCrNiCo medium entropy alloy enhanced by acidity in aqueous solution".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 139(2023):59-68.