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Enhanced combination of mechanical properties and electrical conductivity of a hard state Cu-Cr-Zr alloy via one-step friction stir processing
Wang, Y. D.1,2; Liu, M.1,2; Yu, B. H.1; Wu, L. H.1; Xue, P.1; Ni, D. R.1; Ma, Z. Y.1
Corresponding AuthorXue, P.() ; Ni, D. R.(pxue@imr.ac.cn)
2021-02-01
Source PublicationJOURNAL OF MATERIALS PROCESSING TECHNOLOGY
ISSN0924-0136
Volume288Pages:9
AbstractHow to coordinate the strength, ductility and electrical conductivity of Cu-Cr-Zr alloys has always been a difficult problem. Unlike most of previous reports on processing soft state (solution state) alloys, in the present study, a hard state (aged state) Cu-Cr-Zr alloy was subjected to one-step friction stir processing (FSP) at room temperature with more attentions paid to the evolution of grains and precipitates, and their effects on the mechanical and electrical properties. The results showed that the precipitates played a key role in grain refinement, and ultrafine grains (UFG) with an average size of 250 nm were produced after FSP. Many fine precipitates (average size of 3.1 nm) were uniformly distributed in the grains, neither dissolved nor obviously coarsened. Excellent comprehensive properties of high tensile strength (702 MPa), good elongation (16%) and electrical conductivity (74.3% IACS) were achieved in the FSP sample. Furthermore, this one-step FSP method does not need subsequent aging treatment which is indispensable for conventional processing methods, providing a simplified and efficient method for improving the performance of Cu-Cr-Zr alloys.
KeywordCu-Cr-Zr alloy friction stir processing ultrafine grains tensile strength electrical conductivity
Funding OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
DOI10.1016/j.jmatprotec.2020.116880
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[U1760201] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017236]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
WOS IDWOS:000582804800034
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/141333
Collection中国科学院金属研究所
Corresponding AuthorXue, P.; Ni, D. R.
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 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
Recommended Citation
GB/T 7714
Wang, Y. D.,Liu, M.,Yu, B. H.,et al. Enhanced combination of mechanical properties and electrical conductivity of a hard state Cu-Cr-Zr alloy via one-step friction stir processing[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2021,288:9.
APA Wang, Y. D..,Liu, M..,Yu, B. H..,Wu, L. H..,Xue, P..,...&Ma, Z. Y..(2021).Enhanced combination of mechanical properties and electrical conductivity of a hard state Cu-Cr-Zr alloy via one-step friction stir processing.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,288,9.
MLA Wang, Y. D.,et al."Enhanced combination of mechanical properties and electrical conductivity of a hard state Cu-Cr-Zr alloy via one-step friction stir processing".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 288(2021):9.
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