Grain-subdivision-dominated microstructure evolution in shear bands at high rates
Shear banding is an important deformation and failure mechanism in metallic systems, especially at high-rate straining. Dynamic recrystallization was often reported to account for the refined microstructure of shear bands but rarely confirmed using direct quantitative measurement. Here, we employ qu...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-09-01
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| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/21663831.2020.1759155 |
| _version_ | 1819056824470470656 |
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| author | Xiaolong Ma Dexin Zhao Shwetabh Yadav Dinakar Sagapuram Kelvin Y. Xie |
| author_facet | Xiaolong Ma Dexin Zhao Shwetabh Yadav Dinakar Sagapuram Kelvin Y. Xie |
| author_sort | Xiaolong Ma |
| collection | DOAJ |
| description | Shear banding is an important deformation and failure mechanism in metallic systems, especially at high-rate straining. Dynamic recrystallization was often reported to account for the refined microstructure of shear bands but rarely confirmed using direct quantitative measurement. Here, we employ quantitative precession electron diffraction analysis to uncover shear band microstructure in pure titanium. The results reveal that the microstructure is dominated by early stages of grain subdivision process. Dynamic recrystallization is not as prevalent as perceived conventionally. Our results offer key insights into understanding shear banding and highlight the need for quantitative analyses of shear band microstructure. |
| first_indexed | 2024-12-21T13:29:33Z |
| format | Article |
| id | doaj.art-1ec70a6447684a1b9301c0f89bcb5f7b |
| institution | Directory Open Access Journal |
| issn | 2166-3831 |
| language | English |
| last_indexed | 2024-12-21T13:29:33Z |
| publishDate | 2020-09-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj.art-1ec70a6447684a1b9301c0f89bcb5f7b2022-12-21T19:02:21ZengTaylor & Francis GroupMaterials Research Letters2166-38312020-09-018932833410.1080/21663831.2020.17591551759155Grain-subdivision-dominated microstructure evolution in shear bands at high ratesXiaolong Ma0Dexin Zhao1Shwetabh Yadav2Dinakar Sagapuram3Kelvin Y. Xie4Texas A&M UniversityTexas A&M UniversityTexas A&M UniversityTexas A&M UniversityTexas A&M UniversityShear banding is an important deformation and failure mechanism in metallic systems, especially at high-rate straining. Dynamic recrystallization was often reported to account for the refined microstructure of shear bands but rarely confirmed using direct quantitative measurement. Here, we employ quantitative precession electron diffraction analysis to uncover shear band microstructure in pure titanium. The results reveal that the microstructure is dominated by early stages of grain subdivision process. Dynamic recrystallization is not as prevalent as perceived conventionally. Our results offer key insights into understanding shear banding and highlight the need for quantitative analyses of shear band microstructure.http://dx.doi.org/10.1080/21663831.2020.1759155shear bandingdynamic recrystallizationprecession electron diffractiongrain subdivision |
| spellingShingle | Xiaolong Ma Dexin Zhao Shwetabh Yadav Dinakar Sagapuram Kelvin Y. Xie Grain-subdivision-dominated microstructure evolution in shear bands at high rates Materials Research Letters shear banding dynamic recrystallization precession electron diffraction grain subdivision |
| title | Grain-subdivision-dominated microstructure evolution in shear bands at high rates |
| title_full | Grain-subdivision-dominated microstructure evolution in shear bands at high rates |
| title_fullStr | Grain-subdivision-dominated microstructure evolution in shear bands at high rates |
| title_full_unstemmed | Grain-subdivision-dominated microstructure evolution in shear bands at high rates |
| title_short | Grain-subdivision-dominated microstructure evolution in shear bands at high rates |
| title_sort | grain subdivision dominated microstructure evolution in shear bands at high rates |
| topic | shear banding dynamic recrystallization precession electron diffraction grain subdivision |
| url | http://dx.doi.org/10.1080/21663831.2020.1759155 |
| work_keys_str_mv | AT xiaolongma grainsubdivisiondominatedmicrostructureevolutioninshearbandsathighrates AT dexinzhao grainsubdivisiondominatedmicrostructureevolutioninshearbandsathighrates AT shwetabhyadav grainsubdivisiondominatedmicrostructureevolutioninshearbandsathighrates AT dinakarsagapuram grainsubdivisiondominatedmicrostructureevolutioninshearbandsathighrates AT kelvinyxie grainsubdivisiondominatedmicrostructureevolutioninshearbandsathighrates |