[S] Materials Science of Additive Manufacturing II: Creation of Materials by Superthermal Field(2)

[S5.18] Extremely fine nanostructured omega phase in Ti-Zr-Nb-Ta-Hf-Mo high entropy alloy

*Han Chen¹, Daisuke Egusa¹, Ryosuke Ozasa², Takuya Ishimoto³, Takayoshi Nakano², Eiji Abe¹ (1. Department of Materials Science & Engineering, University of Tokyo, Tokyo, 113-8656, Japan、2. Division of Materials and Manufacturing Science, Osaka University, Osaka, 565-0871, Japan、3. Aluminium Research Center, University of Toyama, Toyama, 930-8555, Japan)

Keywords:Omega phase、High entropy alloy、Laser powder bed fusion、Formation mechanism、Experiments and simulation

The potential formation mechanism of extremely fine nanostructured omega phases in as-built Ti-Zr-Nb-Ta-Hf-Mo high entropy alloy is discussed and revealed.