|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Additive Manufacturing Fatigue and Fracture V: Processing-Structure-Property Investigations and Application to Qualification
||Influence of Stress Induced Re-crystallization during Ti-6Al-4V E-PBF Post Processing on Fatigue Behavior
||Nik Hrabe, Nicholas Derimow, Keenan Hanson
|On-Site Speaker (Planned)
During typical E-PBF of Ti-6Al-4V post processing, the material is exposed to key mechanical and thermal steps. Often it involves using a blasting process to remove the lightly sintered or “caked” powder. Following by a heat treatment. This sequence has been demonstrated to produce unique microstructure features on the surface of components. In this presentation the fundamentals of the blasting and heat treatment process steps will be reviewed along with the resultant microstructure characterization and fatigue testing, in order to gain an understanding of the influence of these two process steps on fatigue properties. This understanding is useful for qualification of E-PBF Ti-6Al-4V components in fatigue critical applications.
||Additive Manufacturing, Titanium,