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–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,…

• QP
  Qingdao Postdoctoral Science Foundation

  Award: QDBSH20230201016
• CP
  China Postdoctoral Science Foundation

  Award: 2023M731862
• NS
  Natural Science Foundation of Shandong Province

  Award: ZR2023QE041