中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 金属研究所
  3. 中国科学院金属研究所
Thermal stability behaviors of ultrafine-grained Cu-Cr-Zr alloy processed by friction stir processing and rolling methods

文献类型：期刊论文

作者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
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2023-07-25
卷号950页码:11
关键词CuCrZr alloy Pure Cu Thermal stability Friction stir processing Rolling Precipitate
ISSN号0925-8388
DOI10.1016/j.jallcom.2023.169957
通讯作者Xue, P.(pxue@imr.ac.cn) ; Ni, D. R.(drni@imr.ac.cn)
英文摘要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.
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
语种英语
WOS记录号WOS:000981749400001
出版者ELSEVIER SCIENCE SA
资助机构LiaoNing Revitalization Talents Program ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Liaoning Province Excellent Youth Foundation
源URL[http://ir.imr.ac.cn/handle/321006/177514]  
专题金属研究所_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.

入库方式： OAI收割

来源：金属研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。