Thermal stability behaviors of ultrafine-grained Cu-Cr-Zr alloy processed by friction stir processing and rolling methods

doi:10.1016/j.jallcom.2023.169957

IMR OpenIR

	Thermal stability behaviors of ultrafine-grained Cu-Cr-Zr alloy processed by friction stir processing and rolling methods
	Wang, Y. D.1,2; Liu, F. C.1; Xue, P.1; Zhang, H.1; Wu, L. H.1; Ni, D. R.1; Xiao, B. L.1; Ma, Z. Y.1
通讯作者	Xue, P.(pxue@imr.ac.cn) ; Ni, D. R.(drni@imr.ac.cn)
	2023-07-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	950 页码:11
摘要	In order to investigate the effect of different microstructures on thermal stability, the thermal stability behaviors of ultrafine-grained Cu-Cr-Zr alloy processed by friction stir processing (FSP) and cold rolling (CR) methods was contrastively investigated by comparing with pure copper in this study. In addition to the precipitate strengthening, the FSP and CR samples were mainly strengthened by high angle grain boundaries (HAGBs) and dislocations, respectively. When there were no precipitates in Cu matrix, the onset temperature of softening of CR sample was 50 degrees C higher than that of the FSP sample at the same strength increment. But the precipitates in the FSP and CR Cu-Cr-Zr samples stabilized the deformed microstructures and precipitate coarsening occurred before the recrystallization of deformed microstructures. Therefore, the thermal stability differences disappeared in the FSP and CR Cu-Cr-Zr samples with the same onset temperature of softening (400 degrees C). In Cu-Cr-Zr alloys, although the stored energy of the FSP sample (39.1 J/mol) was 17.1% higher than that of the CR sample, the activation energy (-175 kJ/mol) for grain growth of FSP sample was the same as that for recrystallization of CR sample. The different decrease degrees of thermal stability caused by different stored energy are completely masked by the kinetic constraint of precipitates. (c) 2023 Elsevier B.V. All rights reserved.
关键词	CuCrZr alloy Pure Cu Thermal stability Friction stir processing Rolling Precipitate
资助者	LiaoNing Revitalization Talents Program ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Liaoning Province Excellent Youth Foundation
DOI	10.1016/j.jallcom.2023.169957
收录类别	SCI
语种	英语
资助项目	LiaoNing Revitalization Talents Program[XLYC2002099] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y2021061] ; Liaoning Province Excellent Youth Foundation[2021-YQ-01]
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:000981749400001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：13[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/321006/177515
专题	中国科学院金属研究所
通讯作者	Xue, P.; Ni, D. R.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Y. D.,Liu, F. C.,Xue, P.,et al. Thermal stability behaviors of ultrafine-grained Cu-Cr-Zr alloy processed by friction stir processing and rolling methods[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2023,950:11.
APA	Wang, Y. D..,Liu, F. C..,Xue, P..,Zhang, H..,Wu, L. H..,...&Ma, Z. Y..(2023).Thermal stability behaviors of ultrafine-grained Cu-Cr-Zr alloy processed by friction stir processing and rolling methods.JOURNAL OF ALLOYS AND COMPOUNDS,950,11.
MLA	Wang, Y. D.,et al."Thermal stability behaviors of ultrafine-grained Cu-Cr-Zr alloy processed by friction stir processing and rolling methods".JOURNAL OF ALLOYS AND COMPOUNDS 950(2023):11.