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- Publisher Website: 10.1016/j.msea.2020.139591
- Scopus: eid_2-s2.0-85085275069
- WOS: WOS:000541749700056
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Article: Heavily twinned CoCrNi medium-entropy alloy with superior strength and crack resistance
Title | Heavily twinned CoCrNi medium-entropy alloy with superior strength and crack resistance |
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Authors | |
Keywords | Crack resistance Deformation twin In-situ tensile test Medium-entropy alloy Strength |
Issue Date | 2020 |
Citation | Materials Science and Engineering A, 2020, v. 788, article no. 139591 How to Cite? |
Abstract | The recrystallized and pre-deformed CoCrNi medium-entropy alloy (MEA), introduced with high-density deformation twins, exhibits an unprecedented high yield strength up to 2.1 GPa. We found that the highly distorted deformation twins provide strong resistance to crack propagation and the activated dislocation motion accommodates the further plastic deformation. Our in situ tensile tests of pre-notched sample reveal that crack propagation through strain localization band eventually leads to fracture. This result offers new insights on design and processing of MEA for desired mechanical performance. |
Persistent Identifier | http://hdl.handle.net/10722/326389 |
ISSN | 2023 Impact Factor: 6.1 2023 SCImago Journal Rankings: 1.660 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Feng, Xiaobin | - |
dc.contributor.author | Yang, Haokun | - |
dc.contributor.author | Fan, Rong | - |
dc.contributor.author | Zhang, Wenqiang | - |
dc.contributor.author | Meng, Fanling | - |
dc.contributor.author | Gan, Bin | - |
dc.contributor.author | Lu, Yang | - |
dc.date.accessioned | 2023-03-09T10:00:18Z | - |
dc.date.available | 2023-03-09T10:00:18Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Materials Science and Engineering A, 2020, v. 788, article no. 139591 | - |
dc.identifier.issn | 0921-5093 | - |
dc.identifier.uri | http://hdl.handle.net/10722/326389 | - |
dc.description.abstract | The recrystallized and pre-deformed CoCrNi medium-entropy alloy (MEA), introduced with high-density deformation twins, exhibits an unprecedented high yield strength up to 2.1 GPa. We found that the highly distorted deformation twins provide strong resistance to crack propagation and the activated dislocation motion accommodates the further plastic deformation. Our in situ tensile tests of pre-notched sample reveal that crack propagation through strain localization band eventually leads to fracture. This result offers new insights on design and processing of MEA for desired mechanical performance. | - |
dc.language | eng | - |
dc.relation.ispartof | Materials Science and Engineering A | - |
dc.subject | Crack resistance | - |
dc.subject | Deformation twin | - |
dc.subject | In-situ tensile test | - |
dc.subject | Medium-entropy alloy | - |
dc.subject | Strength | - |
dc.title | Heavily twinned CoCrNi medium-entropy alloy with superior strength and crack resistance | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.msea.2020.139591 | - |
dc.identifier.scopus | eid_2-s2.0-85085275069 | - |
dc.identifier.volume | 788 | - |
dc.identifier.spage | article no. 139591 | - |
dc.identifier.epage | article no. 139591 | - |
dc.identifier.isi | WOS:000541749700056 | - |