| Title | Exceptional Strain-Hardening Capacity of a Medium-Entropy Alloy CoCrNi With Grain-Size Gradient Structure |
| Author | |
| Corresponding Author | Xu, Jiao; Ren, Fuzeng |
| Publication Years | 2023-02-01
|
| DOI | |
| Source Title | |
| ISSN | 1073-5623
|
| EISSN | 1543-1940
|
| Abstract | Surface mechanical attrition treatment (SMAT) was used to produce a surface layer with grain-size gradient along the thickness of spark-plasma-sintered medium-entropy alloy CoCrNi. In comparison with the spark-plasma-sintered fine-grained CoCrNi, the alloy after SMAT shows a 46 pct increase in yield strength and over three times higher strain-hardening rate ((d sigma)/(d epsilon)). The ultimate tensile strength (sigma(UTS)) and the elongation (epsilon(f)) reach 1420 MPa and 61.3 pct, respectively. The excellent strength-ductility synergy should be attributed to the Hall-Petch strengthening and the formation of high density of dislocations and nanotwins. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| SUSTech Authorship | First
; Corresponding
|
| Funding Project | Shenzhen Fundamental Research Project[JCJY20190809153205492]
; National Natural Science Foundation of China[52122102]
|
| WOS Research Area | Materials Science
; Metallurgy & Metallurgical Engineering
|
| WOS Subject | Materials Science, Multidisciplinary
; Metallurgy & Metallurgical Engineering
|
| WOS Accession No | WOS:000949169600003
|
| Publisher | |
| ESI Research Field | MATERIALS SCIENCE
|
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/523975 |
| Department | Department of Materials Science and Engineering |
| Affiliation | 1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China 2.Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Clear Water Bay, Hong Kong, Peoples R China 3.Shenzhen Univ, Inst Semicond Mfg Res, Shenzhen 518060, Guangdong, Peoples R China |
| First Author Affilication | Department of Materials Science and Engineering |
| Corresponding Author Affilication | Department of Materials Science and Engineering |
| First Author's First Affilication | Department of Materials Science and Engineering |
| Recommended Citation GB/T 7714 |
Wei, Pengbo,Yan, Kai,Xu, Jiao,et al. Exceptional Strain-Hardening Capacity of a Medium-Entropy Alloy CoCrNi With Grain-Size Gradient Structure[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2023.
|
| APA |
Wei, Pengbo,Yan, Kai,Xu, Jiao,&Ren, Fuzeng.(2023).Exceptional Strain-Hardening Capacity of a Medium-Entropy Alloy CoCrNi With Grain-Size Gradient Structure.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE.
|
| MLA |
Wei, Pengbo,et al."Exceptional Strain-Hardening Capacity of a Medium-Entropy Alloy CoCrNi With Grain-Size Gradient Structure".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2023).
|
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