|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||High-Temperature Tensile, Creep and Microstructural Characterization of Additively Manufactured 15-5 PH Stainless Steel
||Dallas Roberts, Martin Taylor, Indrajit Charit, Jing Zhang
|On-Site Speaker (Planned)
Direct metal laser sintering (DMLS) is one of the few laser based powder bed additive manufacturing (AM) techniques that have garnered much interest in recent years. The high-temperature deformation characteristics of AM 15-5 PH stainless steel (SS) have not been investigated in comparison with the traditionally manufactured (TM) alloy. In this study, AM and TM 15-5 PH SS are subjected to microhardness testing, creep testing, and elevated temperature tensile testing. The microstructural characteristics of both materials are analyzed using optical microscopy as well as transmission and scanning electron microscopy. Preliminary results show that the AM 15-5 PH SS has better creep, high-temperature tensile, and microhardness properties than the TM counterpart. The reasons for such improvement are explained with the help of observed microstructural differences between the AM and the TM alloy.
||Planned: Supplemental Proceedings volume