Abstract:
Ti2AlNb intermetallics are promising next-generation aerospace materials. Advancement in non-conventional manufacturing methods has made the fabrication of
these intermetallics economical. However, post-heat treatments are required to obtain desired mechanical properties,
which further depend on the microstructural features of the
intermetallics. Extensive studies have been conducted to
understand the relation between mechanical behavior and
microstructural features of this intermetallic. This review
presents the effect of various microstructural features of
(a) fully B2 and a2 ? B2, (b) fully lamellar, (c) bimodal
lamellar, (d) equiaxed and duplex, and (e) plate-like O
phase on room temperature properties, namely strength,
ductility, and fracture mechanisms. Moreover, the review
emphasizes the special microstructural features that are
required to enhance the mechanical properties of the alloy
