|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques II
||Investigating the Impact and Evolution Porosity of LPBF Ti6Al4V Using In-situ Mechanical/XCT Testing
||Hossein Talebinezhad, Ralf Fischer, Barton Prorok, David Hertz-Eichenrode
|On-Site Speaker (Planned)
The evaluation of pores under tensile and torsion loads of LPBF Ti6Al4V was carried out in situ with an X-ray CT. The printing parameters were varied to achieve different degrees of porosity and as-printed samples were heat-treated between 600-900°C at various times to modulate microstructure. The in-situ mechanical testing in the X-ray CT was performed to enable imaging and evolution of defects that led to failure. The XCT defect analysis was performed at individual stages of applied load on both as-built and heat-treated samples. Under different sample strains, the mean diameter, density, volume fraction and sphericity of pores were quantified. The results are aimed to impact the use of LPBF Ti6Al4V in medical and other applications where mechanical performance is critical.
||Additive Manufacturing, Characterization, Titanium