抄録
Metallic materials are fundamental to a vast majority of industries. Although the understanding of the strengthening and
microstructure relation of metals and alloys has matured, additive manufacturing of metallic materials is expanding the possibilities
of obtaining unique microstructural characteristics and enhanced mechanical properties. In this review, the microstructure control of
the crystallographic texture and grain morphology and its effect on the strengthening of Inconel 718, a major Ni-based superalloy
fabricated by laser powder bed fusion (LPBF), is discussed in terms of characteristics that are unique to the manufacturing method.
In particular, this review focuses on the unique crystallographic lamellar microstructure, which can only be formed by the LPBF
method, and its enhancement by the effect of the lamellar microstructure interfaces.
