Suppression of grain boundary migration at cryogenic temperature in an extremely fine nanograined Ni-Mo alloy

doi:10.1016/j.jmst.2020.03.048

CORC > 金属研究所 > 中国科学院金属研究所

	Suppression of grain boundary migration at cryogenic temperature in an extremely fine nanograined Ni-Mo alloy
	Hu, J.2,3; Li, J. X.1,3; Shi, Y. N.3
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2020-11-15
卷号	57 页码:65-69
关键词	Extremely fine nanograined metals Mechanically-driven grain boundary migration Cryogenic temperature Shear bands Solute atoms
ISSN号	1005-0302
DOI	10.1016/j.jmst.2020.03.048
通讯作者	Shi, Y. N.(yinongshi@imr.ac.cn)
英文摘要	Microindentation creep tests on an electrodeposited extremely fine (4.9 nm) nanograined (ng) Ni-14.2 at.% Mo (Ni-14.2Mo) at both room temperature (RT) and liquid nitrogen temperature (LNT) demonstrated that lowering temperature retarded softening in the ng Ni-Mo alloy. The obtained strain rate sensitivity at LNT was one order of magnitude lower than that at RT. Microstructural characterization revealed that mechanically-driven grain boundary (GB) migration was greatly suppressed by lowering temperature, which might be ascribed to the presence of solute Mo atoms that significantly retarded coupled GB motion at LNT. Deformation was instead carried by shear bands. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	Ministry of Science & Technology of China[2017YFA0204401] ; National Natural Science Foundation of China[ZDYZD201701] ; National Natural Science Foundation of China[51961012] ; National Natural Science Foundation of China[51801064] ; Jiangxi Outstanding Young Talents Funding Program[20192BCB23014] ; Liaoning Revitalization Talents Program[XLYC1808008] ; Shenyang National Laboratory for Materials Science[2016RP05]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000572537200023
资助机构	Ministry of Science & Technology of China ; National Natural Science Foundation of China ; Jiangxi Outstanding Young Talents Funding Program ; Liaoning Revitalization Talents Program ; Shenyang National Laboratory for Materials Science
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/140609]
专题	金属研究所_中国科学院金属研究所
通讯作者	Shi, Y. N.
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 2.East China JiaoTong Univ, Inst Adv Mat, Nanchang 330013, Jiangxi, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Hu, J.,Li, J. X.,Shi, Y. N.. Suppression of grain boundary migration at cryogenic temperature in an extremely fine nanograined Ni-Mo alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,57:65-69.
APA	Hu, J.,Li, J. X.,&Shi, Y. N..(2020).Suppression of grain boundary migration at cryogenic temperature in an extremely fine nanograined Ni-Mo alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,57,65-69.
MLA	Hu, J.,et al."Suppression of grain boundary migration at cryogenic temperature in an extremely fine nanograined Ni-Mo alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 57(2020):65-69.