Selective Laser Melting process optimization of Ti-Mo-TiC metal matrix composites

© 2019 Selective Laser Melting (SLM) was used to process a powder mixture of CP Ti, 6.5 wt% Mo and 3.5 wt% Mo 2 C. The process parameters were optimized to obtain full-density, crack free parts. After the in situ decomposition of Mo 2 C in favor of the formation of TiC, the material consisted of a homogeneous dispersion of submicrometer sized TiC platelets in a β-(Ti,Mo) matrix exhibiting a high hardness up to 550 HV and compressive yield stress of 1164 ± 37 MPa. The microstructure and mechanical properties could be tailored by variation of the process parameters within the high-density processing window, as well as through post-process heat treatments.

Publication year:2019

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CSS-citation score:2

Authors:International

Authors from:Higher Education

Accessibility:Open