|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Alloy Development and Powder Manufacture for Additive Manufacturing
||Thermal Stability of Laser Sintered Nanostructured Powder
||Kendrick Mensink, Sandip Harimkar, Guillermo Aguilar, Suveen Mathaudhu
|On-Site Speaker (Planned)
Nanocrystalline (NC) materials can demonstrate improved properties such as strength and wear resistance over their coarse-grained counterparts. NC additive manufacturing usage has not been explored because resolidification typically results in larger grain structure. Recent reports on certain NC binary alloy systems have demonstrated remarkable pressureless sinterability via solute phase segregation along particle and grain boundaries while maintaining NC structure. We use powder metallurgy (PM) to generate similar NC binary alloy particles. Furnace heating and laser heating approaches are used to probe accelerated phase separation sintering near melt temperature. Particle morphology and ability to maintain NC structure after laser sintering and heat treatments are evaluated. Our experimental results explore the suitability of PM accelerated phase separation sintering via laser heating and help forecast the feasibility of NC additive manufacturing.
||Planned: Supplemental Proceedings volume