Optimising the mechanism of electroshock treatment on the tensile behaviour of the laser melting deposited Ti55531 alloy
As an important additive manufacturing method, laser melting deposition (LMD) can be utilised to manufacture many high-property components. In this work, the Ti55531 alloy (Ti-5Al-5V-5Mo-3Cr-1Zr) is manufactured by LMD, and a novel electroshock treatment (EST) is introduced to modify the tensile pro...
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Taylor & Francis Group
2025-12-01
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Online Access: | https://www.tandfonline.com/doi/10.1080/17452759.2024.2449174 |
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author | Chang Liu Haoxing Wang Jian Zhou Yan Wen Lechun Xie Liqiang Wang Lin Hua |
author_facet | Chang Liu Haoxing Wang Jian Zhou Yan Wen Lechun Xie Liqiang Wang Lin Hua |
author_sort | Chang Liu |
collection | DOAJ |
description | As an important additive manufacturing method, laser melting deposition (LMD) can be utilised to manufacture many high-property components. In this work, the Ti55531 alloy (Ti-5Al-5V-5Mo-3Cr-1Zr) is manufactured by LMD, and a novel electroshock treatment (EST) is introduced to modify the tensile properties of LMD Ti55531. The microstructure of LMD Ti55531 is an alternating arrangement of columnar and equiaxed β grains. The α phase has not undergone an obvious phase transition after 0.06 s EST, and many fine α phase precipitates with EST time increased to 0.08 s. The reduction of dislocations in the trigeminal grain boundary areas improves the ability to accommodate dislocations and plastic deformation, which improves the elongation of LMD Ti55531 from 14.5% to 17.6% without the loss of tensile strength after 0.06 s EST. The precipitation of the fine α phase in the β phase weakens the ability of the sample to withstand plastic deformation after 0.08 s EST, which reduces the elongation. All results indicate that EST is an effective and novel way to optimising the tensile properties of LMD titanium alloys. |
format | Article |
id | doaj-art-66dcbc26b7fb4180aed17fd522f9362f |
institution | Kabale University |
issn | 1745-2759 1745-2767 |
language | English |
publishDate | 2025-12-01 |
publisher | Taylor & Francis Group |
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series | Virtual and Physical Prototyping |
spelling | doaj-art-66dcbc26b7fb4180aed17fd522f9362f2025-01-15T18:47:36ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672025-12-0120110.1080/17452759.2024.2449174Optimising the mechanism of electroshock treatment on the tensile behaviour of the laser melting deposited Ti55531 alloyChang Liu0Haoxing Wang1Jian Zhou2Yan Wen3Lechun Xie4Liqiang Wang5Lin Hua6Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, People’s Republic of ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, People’s Republic of ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, People’s Republic of ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, People’s Republic of ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, People’s Republic of ChinaState Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan, People’s Republic of ChinaAs an important additive manufacturing method, laser melting deposition (LMD) can be utilised to manufacture many high-property components. In this work, the Ti55531 alloy (Ti-5Al-5V-5Mo-3Cr-1Zr) is manufactured by LMD, and a novel electroshock treatment (EST) is introduced to modify the tensile properties of LMD Ti55531. The microstructure of LMD Ti55531 is an alternating arrangement of columnar and equiaxed β grains. The α phase has not undergone an obvious phase transition after 0.06 s EST, and many fine α phase precipitates with EST time increased to 0.08 s. The reduction of dislocations in the trigeminal grain boundary areas improves the ability to accommodate dislocations and plastic deformation, which improves the elongation of LMD Ti55531 from 14.5% to 17.6% without the loss of tensile strength after 0.06 s EST. The precipitation of the fine α phase in the β phase weakens the ability of the sample to withstand plastic deformation after 0.08 s EST, which reduces the elongation. All results indicate that EST is an effective and novel way to optimising the tensile properties of LMD titanium alloys.https://www.tandfonline.com/doi/10.1080/17452759.2024.2449174Electroshock treatment (EST)laser melting deposition (LMD)tensile propertyTi55531 alloyslip lines |
spellingShingle | Chang Liu Haoxing Wang Jian Zhou Yan Wen Lechun Xie Liqiang Wang Lin Hua Optimising the mechanism of electroshock treatment on the tensile behaviour of the laser melting deposited Ti55531 alloy Virtual and Physical Prototyping Electroshock treatment (EST) laser melting deposition (LMD) tensile property Ti55531 alloy slip lines |
title | Optimising the mechanism of electroshock treatment on the tensile behaviour of the laser melting deposited Ti55531 alloy |
title_full | Optimising the mechanism of electroshock treatment on the tensile behaviour of the laser melting deposited Ti55531 alloy |
title_fullStr | Optimising the mechanism of electroshock treatment on the tensile behaviour of the laser melting deposited Ti55531 alloy |
title_full_unstemmed | Optimising the mechanism of electroshock treatment on the tensile behaviour of the laser melting deposited Ti55531 alloy |
title_short | Optimising the mechanism of electroshock treatment on the tensile behaviour of the laser melting deposited Ti55531 alloy |
title_sort | optimising the mechanism of electroshock treatment on the tensile behaviour of the laser melting deposited ti55531 alloy |
topic | Electroshock treatment (EST) laser melting deposition (LMD) tensile property Ti55531 alloy slip lines |
url | https://www.tandfonline.com/doi/10.1080/17452759.2024.2449174 |
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