Influence mechanism of microstructure variation on mechanical properties of laser melting deposition Ti–6Al–4V alloy under electroshocking treatment
In this work, the electroshocking treatment (EST) was applied on the Ti–6Al–4V alloys prepared by laser melting deposition (LMD), and the evolutions of microstructure and mechanical property were investigated. The results indicated that the size of columnar grains in LMD Ti–6Al–4V was reduced after...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423013376 |
| _version_ | 1797745277296181248 |
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| author | Yan Wen Jian Bi Jian Zhou Haojie Guo Junlan Yi Liqiang Wang Lin Hua Lechun Xie |
| author_facet | Yan Wen Jian Bi Jian Zhou Haojie Guo Junlan Yi Liqiang Wang Lin Hua Lechun Xie |
| author_sort | Yan Wen |
| collection | DOAJ |
| description | In this work, the electroshocking treatment (EST) was applied on the Ti–6Al–4V alloys prepared by laser melting deposition (LMD), and the evolutions of microstructure and mechanical property were investigated. The results indicated that the size of columnar grains in LMD Ti–6Al–4V was reduced after EST, and the α refinement was obvious. The basket weave microstructure existed due to the effect of EST. The results of electron backscatter diffraction (EBSD) showed that EST could reduce the orientation concentration and weaken the texture. The texture in Ti–6Al–4V was formed during LMD, and it became uniform and weak after EST. On the mechanical properties, the microhardness of specimen increased after EST with 0.04 s, and the yield strength changed little and the strain increased more obviously because of the microregion phase transition. The compression fracture morphology revealed that the fracture mode of LMD Ti–6Al–4V changed from the brittle fracture to ductile fracture because of the microstructure variation. Based on above results, it demonstrates that EST is a new exploration method to manipulate the microstructure of LMD titanium alloys and modify the comprehensive mechanical properties of LMD titanium alloys. |
| first_indexed | 2024-03-12T15:21:05Z |
| format | Article |
| id | doaj.art-ae63b0035a064b939707f6c94e6b5358 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-12T15:21:05Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj.art-ae63b0035a064b939707f6c94e6b53582023-08-11T05:33:31ZengElsevierJournal of Materials Research and Technology2238-78542023-07-012527582768Influence mechanism of microstructure variation on mechanical properties of laser melting deposition Ti–6Al–4V alloy under electroshocking treatmentYan Wen0Jian Bi1Jian Zhou2Haojie Guo3Junlan Yi4Liqiang Wang5Lin Hua6Lechun Xie7Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, PR China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, PR ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, PR China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, PR ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, PR China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, PR ChinaShanghai Aircraft Manufacturing Co., Ltd., Commercial Aircraft Corporation of China, Ltd., Shanghai 201324, PR ChinaShanghai Aircraft Manufacturing Co., Ltd., Commercial Aircraft Corporation of China, Ltd., Shanghai 201324, PR ChinaState Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, PR China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, PR China; Corresponding author. Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, PR China.Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, PR China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, PR China; Corresponding author. Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, PR China.In this work, the electroshocking treatment (EST) was applied on the Ti–6Al–4V alloys prepared by laser melting deposition (LMD), and the evolutions of microstructure and mechanical property were investigated. The results indicated that the size of columnar grains in LMD Ti–6Al–4V was reduced after EST, and the α refinement was obvious. The basket weave microstructure existed due to the effect of EST. The results of electron backscatter diffraction (EBSD) showed that EST could reduce the orientation concentration and weaken the texture. The texture in Ti–6Al–4V was formed during LMD, and it became uniform and weak after EST. On the mechanical properties, the microhardness of specimen increased after EST with 0.04 s, and the yield strength changed little and the strain increased more obviously because of the microregion phase transition. The compression fracture morphology revealed that the fracture mode of LMD Ti–6Al–4V changed from the brittle fracture to ductile fracture because of the microstructure variation. Based on above results, it demonstrates that EST is a new exploration method to manipulate the microstructure of LMD titanium alloys and modify the comprehensive mechanical properties of LMD titanium alloys.http://www.sciencedirect.com/science/article/pii/S2238785423013376Electroshocking treatment (EST)Laser melting deposition (LMD)MicrostructureMechanical propertiesTi–6Al–4V |
| spellingShingle | Yan Wen Jian Bi Jian Zhou Haojie Guo Junlan Yi Liqiang Wang Lin Hua Lechun Xie Influence mechanism of microstructure variation on mechanical properties of laser melting deposition Ti–6Al–4V alloy under electroshocking treatment Journal of Materials Research and Technology Electroshocking treatment (EST) Laser melting deposition (LMD) Microstructure Mechanical properties Ti–6Al–4V |
| title | Influence mechanism of microstructure variation on mechanical properties of laser melting deposition Ti–6Al–4V alloy under electroshocking treatment |
| title_full | Influence mechanism of microstructure variation on mechanical properties of laser melting deposition Ti–6Al–4V alloy under electroshocking treatment |
| title_fullStr | Influence mechanism of microstructure variation on mechanical properties of laser melting deposition Ti–6Al–4V alloy under electroshocking treatment |
| title_full_unstemmed | Influence mechanism of microstructure variation on mechanical properties of laser melting deposition Ti–6Al–4V alloy under electroshocking treatment |
| title_short | Influence mechanism of microstructure variation on mechanical properties of laser melting deposition Ti–6Al–4V alloy under electroshocking treatment |
| title_sort | influence mechanism of microstructure variation on mechanical properties of laser melting deposition ti 6al 4v alloy under electroshocking treatment |
| topic | Electroshocking treatment (EST) Laser melting deposition (LMD) Microstructure Mechanical properties Ti–6Al–4V |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423013376 |
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