The interplay relationship between phase transformation and deformation behavior during hot compression in a metastable β titanium alloy
In this work, the hot compression behavior at 600 °C of a metastable β titanium alloy is investigated to resolve the correlation between phase transformation and deformation behavior. It is demonstrated that the deformation behavior includes a near linear hardening stage, a discontinuous yielding st...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127520308108 |
| _version_ | 1828885561985728512 |
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| author | Ke Hua Qiong Wan Hongchao Kou Fan Zhang Yongliang Zhang Jinshan Li |
| author_facet | Ke Hua Qiong Wan Hongchao Kou Fan Zhang Yongliang Zhang Jinshan Li |
| author_sort | Ke Hua |
| collection | DOAJ |
| description | In this work, the hot compression behavior at 600 °C of a metastable β titanium alloy is investigated to resolve the correlation between phase transformation and deformation behavior. It is demonstrated that the deformation behavior includes a near linear hardening stage, a discontinuous yielding stage, a hardening stage and a final softening stage. For the near linear hardening stage, the α precipitates are formed on the grain boundaries (αGB). The hardening behavior of the alloy in this stage balanced by boundary hardening through the formation of αGB. For the discontinuous yielding stage, the softening of deformation behavior is originated from the fragmentation of the αGB and the generation and movement of mobile dislocation. For the hardening stage follow the discontinuous yielding, the massive β to α phase transformation were occurred and mainly contributed to the hardening behavior. For the final softening behavior stage, three activities: the formation of deformation bands, the spheroidization of α phase and the dislocation slips contribute to the softening behavior. The present results provide comprehensive information on hot deformation mechanisms of metastable β titanium alloys. |
| first_indexed | 2024-12-13T11:28:51Z |
| format | Article |
| id | doaj.art-27450fe774ae43408de63c37e413f67d |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-13T11:28:51Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-27450fe774ae43408de63c37e413f67d2022-12-21T23:48:02ZengElsevierMaterials & Design0264-12752021-01-01197109275The interplay relationship between phase transformation and deformation behavior during hot compression in a metastable β titanium alloyKe Hua0Qiong Wan1Hongchao Kou2Fan Zhang3Yongliang Zhang4Jinshan Li5State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, 710072 Xi'an, PR China; Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, 710072 Xi'an, PR China; Corresponding author at: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, 710072 Xi'an, PR China.State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, 710072 Xi'an, PR China; Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, 710072 Xi'an, PR ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, 710072 Xi'an, PR ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, 710072 Xi'an, PR China; Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, 710072 Xi'an, PR ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, 710072 Xi'an, PR China; Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, 710072 Xi'an, PR ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, 710072 Xi'an, PR China; Corresponding author.In this work, the hot compression behavior at 600 °C of a metastable β titanium alloy is investigated to resolve the correlation between phase transformation and deformation behavior. It is demonstrated that the deformation behavior includes a near linear hardening stage, a discontinuous yielding stage, a hardening stage and a final softening stage. For the near linear hardening stage, the α precipitates are formed on the grain boundaries (αGB). The hardening behavior of the alloy in this stage balanced by boundary hardening through the formation of αGB. For the discontinuous yielding stage, the softening of deformation behavior is originated from the fragmentation of the αGB and the generation and movement of mobile dislocation. For the hardening stage follow the discontinuous yielding, the massive β to α phase transformation were occurred and mainly contributed to the hardening behavior. For the final softening behavior stage, three activities: the formation of deformation bands, the spheroidization of α phase and the dislocation slips contribute to the softening behavior. The present results provide comprehensive information on hot deformation mechanisms of metastable β titanium alloys.http://www.sciencedirect.com/science/article/pii/S0264127520308108Phase transformationDeformation behaviorHardening and softeningMicrostructuresTitanium alloy |
| spellingShingle | Ke Hua Qiong Wan Hongchao Kou Fan Zhang Yongliang Zhang Jinshan Li The interplay relationship between phase transformation and deformation behavior during hot compression in a metastable β titanium alloy Materials & Design Phase transformation Deformation behavior Hardening and softening Microstructures Titanium alloy |
| title | The interplay relationship between phase transformation and deformation behavior during hot compression in a metastable β titanium alloy |
| title_full | The interplay relationship between phase transformation and deformation behavior during hot compression in a metastable β titanium alloy |
| title_fullStr | The interplay relationship between phase transformation and deformation behavior during hot compression in a metastable β titanium alloy |
| title_full_unstemmed | The interplay relationship between phase transformation and deformation behavior during hot compression in a metastable β titanium alloy |
| title_short | The interplay relationship between phase transformation and deformation behavior during hot compression in a metastable β titanium alloy |
| title_sort | interplay relationship between phase transformation and deformation behavior during hot compression in a metastable β titanium alloy |
| topic | Phase transformation Deformation behavior Hardening and softening Microstructures Titanium alloy |
| url | http://www.sciencedirect.com/science/article/pii/S0264127520308108 |
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