Influence of pre-strain on inelastic recovery and shape memory property of metastable Ti–10V–2Fe–3Al alloy
The microstructure evolution, inelastic recovery and shape memory effect of the solution treated metastable Ti–10V–2Fe–3Al (Ti-1023) alloy under tensile loading-unloading deformation were investigated. As a consequence of stress-induced martensitic transformation (SIMT) and martensitic reorientation...
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2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| author | E. Zhu Fuguo Li Qian Zhao Tong Wang Anisah Farooq Hashmi |
| author_facet | E. Zhu Fuguo Li Qian Zhao Tong Wang Anisah Farooq Hashmi |
| author_sort | E. Zhu |
| collection | DOAJ |
| description | The microstructure evolution, inelastic recovery and shape memory effect of the solution treated metastable Ti–10V–2Fe–3Al (Ti-1023) alloy under tensile loading-unloading deformation were investigated. As a consequence of stress-induced martensitic transformation (SIMT) and martensitic reorientation, the tensile stress-strain curve exhibits a pronounced double-yield stress plateau. In addition to the elastic recovery of α'' and β phases, an inelastic recovery strain is generated by the reversal of α'' martensite. As the pre-strain increases, interactions between differently oriented α'' variants result in an increase in internal stress and the formation of defects. This, in conjunction with the plastic deformation of β and α'' phases, results in the accumulation of dislocations that impede the reorientation and reversal of α'' martensite. The differential scanning calorimetry (DSC) results demonstrate that the onset temperature (As) of reverse martensitic transformation increases with pre-strain increasing. Moreover, the volume fraction of α'' martensite also increases with pre-strain, resulting in the formation of numerous phase boundaries and grain boundaries, as well as an elevated dislocation density within the martensite, thereby enhancing the stability of the martensite. As the pre-strain increases, the elevated density of dislocations and boundaries, results in a notable diminution of the shape memory effect in the alloy. |
| format | Article |
| id | doaj-art-db4c6bcba6734499a15e7f57ed9aef45 |
| institution | Kabale University |
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| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-db4c6bcba6734499a15e7f57ed9aef452025-08-20T03:53:42ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01366366637610.1016/j.jmrt.2025.04.244Influence of pre-strain on inelastic recovery and shape memory property of metastable Ti–10V–2Fe–3Al alloyE. Zhu0Fuguo Li1Qian Zhao2Tong Wang3Anisah Farooq Hashmi4State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China; Shaanxi Key Laboratory of High-Performance Precision Forming Technology and Equipment, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China; Shaanxi Key Laboratory of High-Performance Precision Forming Technology and Equipment, Northwestern Polytechnical University, Xi'an, 710072, China; Corresponding author. State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China.State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, ChinaThe microstructure evolution, inelastic recovery and shape memory effect of the solution treated metastable Ti–10V–2Fe–3Al (Ti-1023) alloy under tensile loading-unloading deformation were investigated. As a consequence of stress-induced martensitic transformation (SIMT) and martensitic reorientation, the tensile stress-strain curve exhibits a pronounced double-yield stress plateau. In addition to the elastic recovery of α'' and β phases, an inelastic recovery strain is generated by the reversal of α'' martensite. As the pre-strain increases, interactions between differently oriented α'' variants result in an increase in internal stress and the formation of defects. This, in conjunction with the plastic deformation of β and α'' phases, results in the accumulation of dislocations that impede the reorientation and reversal of α'' martensite. The differential scanning calorimetry (DSC) results demonstrate that the onset temperature (As) of reverse martensitic transformation increases with pre-strain increasing. Moreover, the volume fraction of α'' martensite also increases with pre-strain, resulting in the formation of numerous phase boundaries and grain boundaries, as well as an elevated dislocation density within the martensite, thereby enhancing the stability of the martensite. As the pre-strain increases, the elevated density of dislocations and boundaries, results in a notable diminution of the shape memory effect in the alloy.http://www.sciencedirect.com/science/article/pii/S2238785425010658Metastable β titanium alloyTensile loading-unloadingNonlinear recoveryShape memory |
| spellingShingle | E. Zhu Fuguo Li Qian Zhao Tong Wang Anisah Farooq Hashmi Influence of pre-strain on inelastic recovery and shape memory property of metastable Ti–10V–2Fe–3Al alloy Journal of Materials Research and Technology Metastable β titanium alloy Tensile loading-unloading Nonlinear recovery Shape memory |
| title | Influence of pre-strain on inelastic recovery and shape memory property of metastable Ti–10V–2Fe–3Al alloy |
| title_full | Influence of pre-strain on inelastic recovery and shape memory property of metastable Ti–10V–2Fe–3Al alloy |
| title_fullStr | Influence of pre-strain on inelastic recovery and shape memory property of metastable Ti–10V–2Fe–3Al alloy |
| title_full_unstemmed | Influence of pre-strain on inelastic recovery and shape memory property of metastable Ti–10V–2Fe–3Al alloy |
| title_short | Influence of pre-strain on inelastic recovery and shape memory property of metastable Ti–10V–2Fe–3Al alloy |
| title_sort | influence of pre strain on inelastic recovery and shape memory property of metastable ti 10v 2fe 3al alloy |
| topic | Metastable β titanium alloy Tensile loading-unloading Nonlinear recovery Shape memory |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425010658 |
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