|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Alloy Development and Powder Manufacture for Additive Manufacturing
||Microstructural Optimization and Design of Metallic Materials for AM
||Fuyao Yan, Wei Xiong, Gregory B. Olson
|On-Site Speaker (Planned)
Limitations for the commercial application of metal additive manufacturing (AM) are related with the microstructures, including porosity, grain structure and inclusions, which are the direct product of AM process. These features directly affect the mechanical properties and are difficult to be controlled and modified by post thermal processing. In this study, the design of maraging steel and titanium alloys that are suitable for additive manufacturing was performed, based on the microstructural investigations and optimizations of PH48S stainless maraging steel and Ti-6Al-4V alloy. The design involves the prevention of hot cracking, and the control of grain structure by performing cyclic austenitizing and by the modification of oxide inclusions as Zener pinning particles.
||Planned: Supplemental Proceedings volume