The environmental degradation behavior of FeNiMnCr high entropy alloy in high temperature hydrogenated water

doi:10.1016/j.scriptamat.2021.114127

IMR OpenIR

	The environmental degradation behavior of FeNiMnCr high entropy alloy in high temperature hydrogenated water
	Dong, Jiuyang 1; Feng, Xingyu 1; Hao, Xianchao 2,3; Kuang, Wenjun 1
通讯作者	Kuang, Wenjun(wjkuang66@gmail.com)
	2021-11-01
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	204 页码:6
摘要	Co-free high entropy alloy (HEA) 28%Fe-27%Ni-27%Mn-18%Cr shows good irradiation resistance and could be a potential candidate for structural material in nuclear power industry. In this work, the environmental degradation behavior of this HEA was investigated in high temperature hydrogenated water. This HEA shows extensive intergranular cracking after constant extension rate tensile test, indicating that it is very susceptible to stress corrosion cracking (SCC) initiation. The microstructure analysis indicates that Mn and Cr diffuse outwards along the grain boundary during oxidation, inducing grain boundary migration. The Cr flux promotes the formation of Cr-enriched oxide layer above the grain boundary which prevents intergranular oxidation when the sample is unstressed. However, Mn is unstable in the oxide and tends to dissolve into the solution, making the oxide porous. The porous oxide fractures readily when stressed, inducing SCC initiation. (c) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	High entropy alloy Oxidation Corrosion Scanning transmission electron microscopy (STEM) Diffusion-induced grain boundary motion (DIGM)
资助者	Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Young Talent Support Plan of Xi'an Jiaotong University
DOI	10.1016/j.scriptamat.2021.114127
收录类别	SCI
语种	英语
资助项目	Ministry of Science and Technology of China[2019YFA0209902] ; National Natural Science Foundation of China[51971172] ; Young Talent Support Plan of Xi'an Jiaotong University
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000690402200007
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：10[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/321006/166836
专题	中国科学院金属研究所
通讯作者	Kuang, Wenjun
作者单位	1.Xi An Jiao Tong Univ, Ctr Adv Mat Performance Nanoscale CAMP Nano, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 3.ChineseAcad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Dong, Jiuyang,Feng, Xingyu,Hao, Xianchao,et al. The environmental degradation behavior of FeNiMnCr high entropy alloy in high temperature hydrogenated water[J]. SCRIPTA MATERIALIA,2021,204:6.
APA	Dong, Jiuyang,Feng, Xingyu,Hao, Xianchao,&Kuang, Wenjun.(2021).The environmental degradation behavior of FeNiMnCr high entropy alloy in high temperature hydrogenated water.SCRIPTA MATERIALIA,204,6.
MLA	Dong, Jiuyang,et al."The environmental degradation behavior of FeNiMnCr high entropy alloy in high temperature hydrogenated water".SCRIPTA MATERIALIA 204(2021):6.