Gas turbine engine article having columnar microstructure

摘要

A gas turbine engine article (30) includes a substrate (50) extending between two circumferential sides, a leading edge (42), a trailing edge (44), an inner side (48) for resisting hot engine exhaust gases, and an outer side (46). A gaspath layer (52) is bonded to the inner side (48) of the substrate (50) and includes a metallic alloy having a columnar microstructure.