Effect of High Strain Rate on Adiabatic Shearing of α+β Dual-Phase Ti Alloy
In the present work, the localized features of adiabatic shear bands (ASBs) of our recently designed damage tolerance α+β dual-phase Ti alloy are investigated by the integration of electron backscattering diffraction and experimental and theoretical Schmid factor analysis. At the strain rate of 1.8...
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| author | Fang Hao Yuxuan Du Peixuan Li Youchuan Mao Deye Lin Jun Wang Xingyu Gao Kaixuan Wang Xianghong Liu Haifeng Song Yong Feng Jinshan Li William Yi Wang |
| author_facet | Fang Hao Yuxuan Du Peixuan Li Youchuan Mao Deye Lin Jun Wang Xingyu Gao Kaixuan Wang Xianghong Liu Haifeng Song Yong Feng Jinshan Li William Yi Wang |
| author_sort | Fang Hao |
| collection | DOAJ |
| description | In the present work, the localized features of adiabatic shear bands (ASBs) of our recently designed damage tolerance α+β dual-phase Ti alloy are investigated by the integration of electron backscattering diffraction and experimental and theoretical Schmid factor analysis. At the strain rate of 1.8 × 10<sup>4</sup> s<sup>−1</sup> induced by a split Hopkinson pressure bar, the shear stress reaches a maximum of 1951 MPa with the shear strain of 1.27. It is found that the α+β dual-phase colony structures mediate the extensive plastic deformations along α/β phase boundaries, contributing to the formations of ASBs, microvoids, and cracks, and resulting in stable and unstable softening behaviors. Moreover, the dynamic recrystallization yields the dispersion of a great amount of fine α grains along the shearing paths and in the ASBs, promoting the softening and shear localization. On the contrary, low-angle grain boundaries present good resistance to the formation of cracks and the thermal softening, while the non-basal slipping dramatically contributes to the strain hardening, supporting the promising approaches to fabricate the advanced damage tolerance dual-phase Ti alloy. |
| first_indexed | 2024-03-10T12:11:32Z |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T12:11:32Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-6d662bf16a18429287601029818324ba2023-11-21T16:09:29ZengMDPI AGMaterials1996-19442021-04-01148204410.3390/ma14082044Effect of High Strain Rate on Adiabatic Shearing of α+β Dual-Phase Ti AlloyFang Hao0Yuxuan Du1Peixuan Li2Youchuan Mao3Deye Lin4Jun Wang5Xingyu Gao6Kaixuan Wang7Xianghong Liu8Haifeng Song9Yong Feng10Jinshan Li11William Yi Wang12State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, ChinaWestern Superconducting Technologies Co., Ltd., Xi’an 710018, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, ChinaCAEP Software Center for High Performance Numerical Simulation, Institute of Applied Physics and Computational Mathematics, Beijing 100088, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, ChinaLaboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, ChinaWestern Superconducting Technologies Co., Ltd., Xi’an 710018, ChinaWestern Superconducting Technologies Co., Ltd., Xi’an 710018, ChinaLaboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, ChinaIn the present work, the localized features of adiabatic shear bands (ASBs) of our recently designed damage tolerance α+β dual-phase Ti alloy are investigated by the integration of electron backscattering diffraction and experimental and theoretical Schmid factor analysis. At the strain rate of 1.8 × 10<sup>4</sup> s<sup>−1</sup> induced by a split Hopkinson pressure bar, the shear stress reaches a maximum of 1951 MPa with the shear strain of 1.27. It is found that the α+β dual-phase colony structures mediate the extensive plastic deformations along α/β phase boundaries, contributing to the formations of ASBs, microvoids, and cracks, and resulting in stable and unstable softening behaviors. Moreover, the dynamic recrystallization yields the dispersion of a great amount of fine α grains along the shearing paths and in the ASBs, promoting the softening and shear localization. On the contrary, low-angle grain boundaries present good resistance to the formation of cracks and the thermal softening, while the non-basal slipping dramatically contributes to the strain hardening, supporting the promising approaches to fabricate the advanced damage tolerance dual-phase Ti alloy.https://www.mdpi.com/1996-1944/14/8/2044deformation and fracturemicrostructureadiabatic shear bandsSchmid factordual-phase |
| spellingShingle | Fang Hao Yuxuan Du Peixuan Li Youchuan Mao Deye Lin Jun Wang Xingyu Gao Kaixuan Wang Xianghong Liu Haifeng Song Yong Feng Jinshan Li William Yi Wang Effect of High Strain Rate on Adiabatic Shearing of α+β Dual-Phase Ti Alloy Materials deformation and fracture microstructure adiabatic shear bands Schmid factor dual-phase |
| title | Effect of High Strain Rate on Adiabatic Shearing of α+β Dual-Phase Ti Alloy |
| title_full | Effect of High Strain Rate on Adiabatic Shearing of α+β Dual-Phase Ti Alloy |
| title_fullStr | Effect of High Strain Rate on Adiabatic Shearing of α+β Dual-Phase Ti Alloy |
| title_full_unstemmed | Effect of High Strain Rate on Adiabatic Shearing of α+β Dual-Phase Ti Alloy |
| title_short | Effect of High Strain Rate on Adiabatic Shearing of α+β Dual-Phase Ti Alloy |
| title_sort | effect of high strain rate on adiabatic shearing of α β dual phase ti alloy |
| topic | deformation and fracture microstructure adiabatic shear bands Schmid factor dual-phase |
| url | https://www.mdpi.com/1996-1944/14/8/2044 |
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