Oxide dispersion strengthening of g-TiAl by laser additive manufacturing

g-TiAl alloys, as a more and more frequently considered high-temperature material, face the challenge to meet increasingly high demands in property improvement. In the present work, the feasibility of laser additive manufacturing (LAM) of a short-milled powder compound consisting of gas atomized g-TiAl powder and nano-scaled Y2O3 powder material materials via DED (direct energy deposition) process is demonstrated. Microstructure and hardness of the consolidated sample are presented. As a result, the suitability of the produced powder blend to achieve fully dense and crack free samples with homogenously dispersed Y2O3-particles with LAM is demonstrated.