|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Fatigue and Fracture
||Effect of Hot Isostatic Pressing on Fatigue Properties of Additively Manufactured Ti-6Al-4V-ELI
||Julius Bonini, Dayna Kinsey, Krista Biggs, Kevin Knight, Ernesto Rios
|On-Site Speaker (Planned)
Hot Isostatic Pressing (HIP) is known to improve the fatigue properties of Ti-6Al-4V castings, and can result in a significant reduction in porosity. It is often used as a post-processing step in Additively Manufactured (AM) Ti-6Al-4V-ELI and has been shown to significantly improve the particle shedding behavior, internal grain structure, and internal porosity of electron beam melted (EBM) Ti-6Al-4V-ELI acetabular cups. The effects of HIP on AM Ti-6Al-4V-ELI as it relates to the fatigue performance of the material will be assessed. Axial fatigue testing and the resulting S-N curves will be presented from specimens of EBM Ti-6Al-4V-ELI in the as-built and HIPed conditions. The fracture surfaces of the tested specimens will be evaluated via scanning electron microscopy (SEM) to identify fracture modes and the effects of any residual AM defects or other anomalies.
||Planned: Supplemental Proceedings volume