Recent advance in laser powder bed fusion of Ti–6Al–4V alloys: microstructure, mechanical properties and machinability
Laser powder bed fusion (LPBF) of titanium alloys has demonstrated significant potential in high-value-added fields such as aerospace and biomedical. However, the highly non-stationary thermal history and inherent limitations of the LPBF process lead to critical challenges associated with LPBF Ti–6A...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-12-01
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| Series: | Virtual and Physical Prototyping |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/17452759.2024.2446952 |
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| author | Chenbing Ni Junjie Zhu Baoguo Zhang Kai An Youqiang Wang Dejian Liu Wei Lu Lida Zhu Changfu Liu |
| author_facet | Chenbing Ni Junjie Zhu Baoguo Zhang Kai An Youqiang Wang Dejian Liu Wei Lu Lida Zhu Changfu Liu |
| author_sort | Chenbing Ni |
| collection | DOAJ |
| description | Laser powder bed fusion (LPBF) of titanium alloys has demonstrated significant potential in high-value-added fields such as aerospace and biomedical. However, the highly non-stationary thermal history and inherent limitations of the LPBF process lead to critical challenges associated with LPBF Ti–6Al–4V components. This severely constrains the application and advancement of LPBF Ti–6Al–4V alloys. This paper focuses on the recent research progress on microstructure, mechanical properties and post-machining performance of LPBF Ti–6Al–4V alloys. Firstly, the influence of key process parameters and laser scanning strategies on forming properties of LPBF Ti–6Al–4V alloys is systematically overviewed. Subsequently, influenced by highly localised heat flow input, extremely high cooling rate and steep temperature gradient, the formation of common defects, non-equilibrium metallurgical structures and mechanical properties, and tensile residual stresses in as-built LPBF parts are analysed in-depth. Finally, the comprehensive machining performance of SLMed Ti–6Al–4V alloys is emphasised in terms of cutting force, surface morphology and roughness, subsurface microstructure evolution, variation of residual stress, and features of tool wear. |
| format | Article |
| id | doaj-art-77edb7ae563744e5b4f074cc2d0f236f |
| 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-77edb7ae563744e5b4f074cc2d0f236f2025-01-05T18:25:17ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672025-12-0120110.1080/17452759.2024.2446952Recent advance in laser powder bed fusion of Ti–6Al–4V alloys: microstructure, mechanical properties and machinabilityChenbing Ni0Junjie Zhu1Baoguo Zhang2Kai An3Youqiang Wang4Dejian Liu5Wei Lu6Lida Zhu7Changfu Liu8School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, People’s Republic of ChinaSchool of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, People’s Republic of ChinaSchool of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, People’s Republic of ChinaSchool of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, People’s Republic of ChinaSchool of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, People’s Republic of ChinaSchool of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, People’s Republic of ChinaSchool of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, People’s Republic of ChinaSchool of Mechanical Engineering and Automation, Northeastern University, Shenyang, People’s Republic of ChinaSchool of Mechanical Engineering, Liaoning Petrochemical University, Fushun, People’s Republic of ChinaLaser powder bed fusion (LPBF) of titanium alloys has demonstrated significant potential in high-value-added fields such as aerospace and biomedical. However, the highly non-stationary thermal history and inherent limitations of the LPBF process lead to critical challenges associated with LPBF Ti–6Al–4V components. This severely constrains the application and advancement of LPBF Ti–6Al–4V alloys. This paper focuses on the recent research progress on microstructure, mechanical properties and post-machining performance of LPBF Ti–6Al–4V alloys. Firstly, the influence of key process parameters and laser scanning strategies on forming properties of LPBF Ti–6Al–4V alloys is systematically overviewed. Subsequently, influenced by highly localised heat flow input, extremely high cooling rate and steep temperature gradient, the formation of common defects, non-equilibrium metallurgical structures and mechanical properties, and tensile residual stresses in as-built LPBF parts are analysed in-depth. Finally, the comprehensive machining performance of SLMed Ti–6Al–4V alloys is emphasised in terms of cutting force, surface morphology and roughness, subsurface microstructure evolution, variation of residual stress, and features of tool wear.https://www.tandfonline.com/doi/10.1080/17452759.2024.2446952Selective laser meltingTi–6Al–4V alloysmicrostructuremechanical propertiesmachinabilityprocess parameters |
| spellingShingle | Chenbing Ni Junjie Zhu Baoguo Zhang Kai An Youqiang Wang Dejian Liu Wei Lu Lida Zhu Changfu Liu Recent advance in laser powder bed fusion of Ti–6Al–4V alloys: microstructure, mechanical properties and machinability Virtual and Physical Prototyping Selective laser melting Ti–6Al–4V alloys microstructure mechanical properties machinability process parameters |
| title | Recent advance in laser powder bed fusion of Ti–6Al–4V alloys: microstructure, mechanical properties and machinability |
| title_full | Recent advance in laser powder bed fusion of Ti–6Al–4V alloys: microstructure, mechanical properties and machinability |
| title_fullStr | Recent advance in laser powder bed fusion of Ti–6Al–4V alloys: microstructure, mechanical properties and machinability |
| title_full_unstemmed | Recent advance in laser powder bed fusion of Ti–6Al–4V alloys: microstructure, mechanical properties and machinability |
| title_short | Recent advance in laser powder bed fusion of Ti–6Al–4V alloys: microstructure, mechanical properties and machinability |
| title_sort | recent advance in laser powder bed fusion of ti 6al 4v alloys microstructure mechanical properties and machinability |
| topic | Selective laser melting Ti–6Al–4V alloys microstructure mechanical properties machinability process parameters |
| url | https://www.tandfonline.com/doi/10.1080/17452759.2024.2446952 |
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