|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Beyond the Beam III
||Processing and Characterization of Tantalum Powders for Cold Spray
||Griffin Turner, James Paramore, Kelvin Xie, Brady Butler
|On-Site Speaker (Planned)
Cold spray tantalum feedstock powders were analyzed by gas fusion methods to determine hydrogen content while particle size distributions and morphologies were measured by laser particle size analysis (LPSA) and SEM imaging. Residual hydrogen in the powder leaves the material in a highly brittle state, inhibiting the plastic deformation, thereby improving substrate and interparticle adhesion. Heat treatments and hydrogen analysis were performed on the feedstock powders to measure how specific heat treatments affect the hydrogen content of the powders without sintering or otherwise affecting powder properties. A heat treatment was found that lowered hydrogen levels below ASTM standards, and LPSA confirmed that the heat treatment did not cause a change in powder size which also affirmed the previous method of powder size analysis through SEM micrographs.
||Additive Manufacturing, Characterization, Powder Materials