Inducing α″ phase by interstitial carbon atoms to achieve strength-ductility enhancement in as-printed Ti alloy
Intermediate α″ phase was constructed in as-printed Ti alloys by introducing interstitial carbon atoms to mitigate the detrimental effects of α′ martensite on ductility. The interstitials served as a lattice modulation limiter to achieve an incomplete atomic shuffle during martensitic transformation...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-04-01
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| Series: | Materials Research Letters |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2025.2450470 |
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| author | Xuemeng Gan Dong Ye Shaofu Li Shunyuan Xiao Chaoquan Hu Katsuyoshi Kondoh Shota Kariya Lei Zhang Yafeng Yang |
| author_facet | Xuemeng Gan Dong Ye Shaofu Li Shunyuan Xiao Chaoquan Hu Katsuyoshi Kondoh Shota Kariya Lei Zhang Yafeng Yang |
| author_sort | Xuemeng Gan |
| collection | DOAJ |
| description | Intermediate α″ phase was constructed in as-printed Ti alloys by introducing interstitial carbon atoms to mitigate the detrimental effects of α′ martensite on ductility. The interstitials served as a lattice modulation limiter to achieve an incomplete atomic shuffle during martensitic transformation process to form metastable α″ phase, followed by stabilizing the α″ to inhibit the growth of α′ martensite. The resulting microstructure, characterized by a dominant α/α′ matrix decorated with fine α″ phase, enhanced twinning formation ability and induced dynamic Hall–Petch and grain refinement strengthening effects. This resulted in simultaneous improvements in both strength and ductility. |
| format | Article |
| id | doaj-art-09c2c8228d4249dc9e9fd86fcffca88c |
| institution | DOAJ |
| issn | 2166-3831 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj-art-09c2c8228d4249dc9e9fd86fcffca88c2025-08-20T03:07:33ZengTaylor & Francis GroupMaterials Research Letters2166-38312025-04-0113432032710.1080/21663831.2025.2450470Inducing α″ phase by interstitial carbon atoms to achieve strength-ductility enhancement in as-printed Ti alloyXuemeng Gan0Dong Ye1Shaofu Li2Shunyuan Xiao3Chaoquan Hu4Katsuyoshi Kondoh5Shota Kariya6Lei Zhang7Yafeng Yang8State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of ChinaBAIMTEC Material Co., Ltd., Beijing, People’s Republic of ChinaState Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of ChinaState Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of ChinaState Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of ChinaJoining and Welding Research Institute, Osaka University, Osaka, JapanJoining and Welding Research Institute, Osaka University, Osaka, JapanState Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of ChinaState Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People’s Republic of ChinaIntermediate α″ phase was constructed in as-printed Ti alloys by introducing interstitial carbon atoms to mitigate the detrimental effects of α′ martensite on ductility. The interstitials served as a lattice modulation limiter to achieve an incomplete atomic shuffle during martensitic transformation process to form metastable α″ phase, followed by stabilizing the α″ to inhibit the growth of α′ martensite. The resulting microstructure, characterized by a dominant α/α′ matrix decorated with fine α″ phase, enhanced twinning formation ability and induced dynamic Hall–Petch and grain refinement strengthening effects. This resulted in simultaneous improvements in both strength and ductility.https://www.tandfonline.com/doi/10.1080/21663831.2025.2450470Powder processingtitanium alloyslaser powder bed fusionmechanical properties |
| spellingShingle | Xuemeng Gan Dong Ye Shaofu Li Shunyuan Xiao Chaoquan Hu Katsuyoshi Kondoh Shota Kariya Lei Zhang Yafeng Yang Inducing α″ phase by interstitial carbon atoms to achieve strength-ductility enhancement in as-printed Ti alloy Materials Research Letters Powder processing titanium alloys laser powder bed fusion mechanical properties |
| title | Inducing α″ phase by interstitial carbon atoms to achieve strength-ductility enhancement in as-printed Ti alloy |
| title_full | Inducing α″ phase by interstitial carbon atoms to achieve strength-ductility enhancement in as-printed Ti alloy |
| title_fullStr | Inducing α″ phase by interstitial carbon atoms to achieve strength-ductility enhancement in as-printed Ti alloy |
| title_full_unstemmed | Inducing α″ phase by interstitial carbon atoms to achieve strength-ductility enhancement in as-printed Ti alloy |
| title_short | Inducing α″ phase by interstitial carbon atoms to achieve strength-ductility enhancement in as-printed Ti alloy |
| title_sort | inducing α phase by interstitial carbon atoms to achieve strength ductility enhancement in as printed ti alloy |
| topic | Powder processing titanium alloys laser powder bed fusion mechanical properties |
| url | https://www.tandfonline.com/doi/10.1080/21663831.2025.2450470 |
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