Effect of thermally induced B2 phase on the corrosion behavior of an Al0.3CoCrFeNi high entropy alloy

doi:10.1016/j.jallcom.2022.163886

IMR OpenIR

	Effect of thermally induced B2 phase on the corrosion behavior of an Al0.3CoCrFeNi high entropy alloy
	Shi, Z. J.1; Wang, Z. B.2; Wang, X. D.3; Zhang, S.1; Zheng, Y. G.2
通讯作者	Wang, Z. B.(zbwang12s@imr.ac.cn) ; Zhang, S.(songzhang.sy@163.com)
	2022-05-15
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	903 页码:11
摘要	The corrosion resistance of Al-Co-Cr-Fe-Ni high entropy alloys (HEAs) is probably affected by B2 phases. In this paper, the effect of B2 phases on the corrosion behavior of Al0.3CoCrFeNi HEAs in 3.5 wt% NaCl solution is clarified in this paper by purposely controlling the formation of B2 phases using annealing treatment. The microstructure characterization reveals that the content of (Al, Ni)-rich and Cr-poor B2 phases increases and the electrochemical measurements show that the pitting corrosion resistance is deteriorated as the annealing temperature decreases. Accordingly, the B2 phase is confirmed to be detrimental to the corrosion resistance of Al0.3CoCrFeNi HEAs. It can be attributed to the preferential dissolution of B2 phases causing easier pit initiation, which is evidenced by the corrosion morphology observation and scanning Kelvin probe force microscopy measurements, and to the slower repassivation rate leading to easier pit propagation, as demonstrated by the quantitative analysis of potentiostatic polarization curves. (c) 2022 Elsevier B.V. All rights reserved.
关键词	High entropy alloys Pitting Corrosion Precipitation phase Passive film Electrochemistry
资助者	National Key Research and Development Program of China ; Science and Technology Commission of Liaoning Province ; Shenyang Science and Technology
DOI	10.1016/j.jallcom.2022.163886
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFB1100204] ; Science and Technology Commission of Liaoning Province[2018106004] ; Shenyang Science and Technology[19-109-1-03]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000749782500003
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173580
专题	中国科学院金属研究所
通讯作者	Wang, Z. B.; Zhang, S.
作者单位	1.Shenyang Univ Technol, Sch Mat Sci & Engn, 111 Shen Liaoxi Rd, Shenyang 110870, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China 3.Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Shi, Z. J.,Wang, Z. B.,Wang, X. D.,et al. Effect of thermally induced B2 phase on the corrosion behavior of an Al0.3CoCrFeNi high entropy alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,903:11.
APA	Shi, Z. J.,Wang, Z. B.,Wang, X. D.,Zhang, S.,&Zheng, Y. G..(2022).Effect of thermally induced B2 phase on the corrosion behavior of an Al0.3CoCrFeNi high entropy alloy.JOURNAL OF ALLOYS AND COMPOUNDS,903,11.
MLA	Shi, Z. J.,et al."Effect of thermally induced B2 phase on the corrosion behavior of an Al0.3CoCrFeNi high entropy alloy".JOURNAL OF ALLOYS AND COMPOUNDS 903(2022):11.