抄録
Solute segregation significantly af fects material properties and is an essential issue in powder-bed fusion (PBF) type additive
manufacturing of Ni-based superalloys. This paper introduces the computational studies of solute segregations in the Hastelloy-X
Ni-based superalloy under the PBF process predicted by the multi-phase field and Scheil-Gulliver models. These studies suggest that
significant solute segregation occurs under rapid cooling conditions and increases the liquation crack susceptibility.