|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Alloy Development and Powder Manufacture for Additive Manufacturing
||Synchrotron Radiation, XPS Depth Profiling and TEM Characterization for Understanding the Powder Microstructures of Some Key Printable Ti materials, and their Implications for Additive Manufacturing
||Ming Yan, Yinghao Zhou, Ma Qian
|On-Site Speaker (Planned)
Ti and Ti alloys are important light-weight metallic materials that are indispensable for many critical industrial applications. Additive manufacturing can facilitate rapid delivery of high-quality, customized Ti products and has therefore drawn significant attention in recent years. In this study, we used synchrotron radiation, XPS depth profiling and FIB+TEM to detail the surface and bulk microstructures of some key Ti materials in the powder form, including commercially pure Ti, Ti-6Al-4V, low-modulus biomedical Ti-Nb-Zr-Ta, and TiAl intermetallics. A comprehensive presentation will be made of the powder surface microstructure, including the oxide types and film thickness, and bulk microstructure which is powder-diameter or solidification-cooling-rate dependent. Implications of the various microstructures revealed will be discussed in the following three aspects: (a) the interactions between powder surface structure and laser energy absorption, (b) the impact on densification during AM, and (c) hints on the actual cooling rate during AM processing of these Ti materials.
||Planned: Supplemental Proceedings volume