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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Main Authors: Chang Liu, Haoxing Wang, Jian Zhou, Yan Wen, Lechun Xie, Liqiang Wang, Lin Hua
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Virtual and Physical Prototyping
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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.
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institution Kabale University
issn 1745-2759
1745-2767
language English
publishDate 2025-12-01
publisher Taylor & Francis Group
record_format Article
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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