Enhancement in impact toughness of CoCrFeMnNi high-entropy alloy via nitrogen addition

doi:10.1016/j.jallcom.2022.167615

IMR OpenIR

	Enhancement in impact toughness of CoCrFeMnNi high-entropy alloy via nitrogen addition
	Feng, Hao 1; Han, Yu 1; Li, Hua-Bing 1,2; Tian, Yan-Zhong 3; Zhu, Hong -Chun 1; Jiang, Zhou-Hua 1,2; He, Tong 4; Zhou, Gang 5
通讯作者	Li, Hua-Bing(lihb@smm.neu.edu.cn)
	2023-01-15
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	932 页码:9
摘要	In this study, the effect of nitrogen on microstructural evolution and Charpy impact energy of CoCrFeMnNi high-entropy alloy (HEA) was investigated, and the corresponding fracture mechanism was revealed. Nitrogen atoms fully dissolved into the matrix and markedly increased the Charpy impact energy of 0.52 N alloy. The fracture morphologies of the 0 N and 0.52 N alloys were both featured with typical ductile fracture mode, while the serpentine glide morphology of 0.52 N alloy covered wider areas than that of 0 N alloy. Besides, the crack propagation path of 0 N alloy was relatively linear and flat, yet the zigzag crack propagation path was frequently deflected for 0.52 N alloy. The microstructure characterization indicated that the synergistic effect of the increased dislocation density and the more evenly distributed slip system contributed to the enhancement in impact toughness of 0.52 N alloy. (c) 2022 Elsevier B.V. All rights reserved.
关键词	High -entropy alloy (HEA) Nitrogen addition Charpy impact energy Dislocation slip Strain-hardening
资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Talent Project of Revitalizing Liaoning ; Program of Introducing Talents of Discipline to Universities
DOI	10.1016/j.jallcom.2022.167615
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[U1960203] ; National Natural Science Foundation of China[52004060] ; National Natural Science Foundation of China[52174308] ; Fundamental Research Funds for the Central Universities[N2125017] ; Fundamental Research Funds for the Central Universities[N2225031] ; Talent Project of Revitalizing Liaoning[XLYC1902046] ; Program of Introducing Talents of Discipline to Universities[B21001]
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:000883061800002
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：11[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/321006/176690
专题	中国科学院金属研究所
通讯作者	Li, Hua-Bing
作者单位	1.Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China 2.Northeastern Univ, Key Lab Ecol Met Multimet Ores, Minist Educ, Shenyang 110819, Liaoning, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 4.Northeastern Univ, Anal & Testing Ctr, Shenyang 110819, Liaoning, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Feng, Hao,Han, Yu,Li, Hua-Bing,et al. Enhancement in impact toughness of CoCrFeMnNi high-entropy alloy via nitrogen addition[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2023,932:9.
APA	Feng, Hao.,Han, Yu.,Li, Hua-Bing.,Tian, Yan-Zhong.,Zhu, Hong -Chun.,...&Zhou, Gang.(2023).Enhancement in impact toughness of CoCrFeMnNi high-entropy alloy via nitrogen addition.JOURNAL OF ALLOYS AND COMPOUNDS,932,9.
MLA	Feng, Hao,et al."Enhancement in impact toughness of CoCrFeMnNi high-entropy alloy via nitrogen addition".JOURNAL OF ALLOYS AND COMPOUNDS 932(2023):9.