Gas Atomized Powder Synthesis Improvements for Additive Manufacturing - (PPT)

摘要

Modified MAR-M-247 alloy jointly developed by AMES/ORNL with potential for improved AM processing. Utilized compressible flow modeling and previous experimental results to select initial HPGA parameters. Conducted successful gas atomization experiment at AMES on 20kg of modified MAR-M-247 alloy. Demonstrated effective use of in situ particle size analysis system for on-line powder size distribution tracking. Characterization of cross-sectioned powder in 45-106μm size range revealed greatly reduced internal porosity. Generated sufficient spherical powder for initial AM experiments on ORNL Arcam Q10+ EBM/powder bed system.