Raising thermal stability of nanograins in a CuCrZr alloy by precipitates on grain boundaries

doi:10.1016/j.jallcom.2021.159016

CORC > 金属研究所 > 中国科学院金属研究所

	Raising thermal stability of nanograins in a CuCrZr alloy by precipitates on grain boundaries
	Zhang, Z. Y.1,2; Sun, L. X.1; Tao, N. R.1
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2021-06-25
卷号	867 页码:5
关键词	Thermal stability Nanograins Precipitate Grain boundary Zener pinning
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2021.159016
通讯作者	Tao, N. R.(nrtao@imr.ac.cn)
英文摘要	In this work, one group of solid solution CuCrZr alloy was pre-aged and followed by dynamic plastic de-formation to prepare nanograins with randomly distributed precipitates and the other group of solid solution CuCrZr alloy was subjected to dynamic plastic deformation and followed by aging treatment to prepare nanograins with precipitates on grain boundaries. We investigated the effect of precipitate distributions on the nanograin growth in the strain-induced nanostructured CuCrZr alloy. The results showed that the onset temperature of nanograin growth is similar to 523 K when precipitates are distributed randomly in the nanograins. Grain growth occurs at 723 K for the nanograins with precipitates located on grain boundaries. The precipitates located on grain boundaries much enhance Zener pinning effect than those distributed randomly in the nanograins, thus raising the thermal stability of nanograins. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[51771196] ; National Natural Science Foundation of China[91963110] ; National Key Research and Development Program of China[2017YFA0204401] ; National Key Research and Development Program of China[2017YFA0204402] ; Key Research Program of Frontier Science, Chinese Academy of Sciences
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000630276200048
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Key Research Program of Frontier Science, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/161336]
专题	金属研究所_中国科学院金属研究所
通讯作者	Tao, N. R.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Z. Y.,Sun, L. X.,Tao, N. R.. Raising thermal stability of nanograins in a CuCrZr alloy by precipitates on grain boundaries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,867:5.
APA	Zhang, Z. Y.,Sun, L. X.,&Tao, N. R..(2021).Raising thermal stability of nanograins in a CuCrZr alloy by precipitates on grain boundaries.JOURNAL OF ALLOYS AND COMPOUNDS,867,5.
MLA	Zhang, Z. Y.,et al."Raising thermal stability of nanograins in a CuCrZr alloy by precipitates on grain boundaries".JOURNAL OF ALLOYS AND COMPOUNDS 867(2021):5.