Cryogenic electropulsing induced microstructure optimization of a cold-rolled CoCrFeMnNi high-entropy alloy

doi:10.1016/j.matchar.2022.112557

IMR OpenIR

	Cryogenic electropulsing induced microstructure optimization of a cold-rolled CoCrFeMnNi high-entropy alloy
	Ben, D. D.1,2; Yang, H. J.1,2; Dong, Y. A.1; Tian, Y. Z.3; Sun, S. J.1; Meng, L. X.1,2; Duan, Q. Q.1; Zhang, P.1,2; Zhang, Z. F.1,2
通讯作者	Yang, H. J.(hjyang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
	2023
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	195 页码:8
摘要	Microstructural evolutions of a cold-rolled CoCrFeMnNi high-entropy alloy (HEA) induced by electropulsing treatment at room temperature (RT-EPT) and liquid nitrogen temperature (LN-EPT) were investigated and compared. Finer recrystallized grains were obtained by LN-EPT compared to RT-EPT with the same discharge voltages. The recrystallization mechanisms were discussed based on the electropulsing induced athermal and thermal effects. The former mainly contributes to promoting the nucleation of grains, while the latter mainly affects the new grain growth. Meanwhile, the precipitation of the Cr-rich phase was greatly suppressed due to the electropulsing which is contrary to the annealing samples. The LN-EPT sample being treated with discharging voltage of 6 kV exhibited the highest yield strength (846 MPa) among the EPT samples due to the partially recrystallized heterogeneous microstructure. As a consequence, LN-EPT may be developed as a promising method to fabricate desired microstructure and mechanical properties.
关键词	High -entropy alloy Cryogenic Electropulsing Recrystallization Mechanical property
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Liao Ning ; CAS Interdisciplinary Innovation Team ; Liao Ning Revitalization Talents Program
DOI	10.1016/j.matchar.2022.112557
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51975552] ; National Natural Science Foundation of China[52130002] ; Natural Science Foundation of Liao Ning[2020-MS-007] ; CAS Interdisciplinary Innovation Team[JCTD-2020-10] ; Liao Ning Revitalization Talents Program[XLYC1808027]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:000899005800001
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：5[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/321006/175624
专题	中国科学院金属研究所
通讯作者	Yang, H. J.; Zhang, Z. F.
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat Minist Educ, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Ben, D. D.,Yang, H. J.,Dong, Y. A.,et al. Cryogenic electropulsing induced microstructure optimization of a cold-rolled CoCrFeMnNi high-entropy alloy[J]. MATERIALS CHARACTERIZATION,2023,195:8.
APA	Ben, D. D..,Yang, H. J..,Dong, Y. A..,Tian, Y. Z..,Sun, S. J..,...&Zhang, Z. F..(2023).Cryogenic electropulsing induced microstructure optimization of a cold-rolled CoCrFeMnNi high-entropy alloy.MATERIALS CHARACTERIZATION,195,8.
MLA	Ben, D. D.,et al."Cryogenic electropulsing induced microstructure optimization of a cold-rolled CoCrFeMnNi high-entropy alloy".MATERIALS CHARACTERIZATION 195(2023):8.