The microstructure evolution and tensile properties of electron beam selective melted Ti-48Al-2Cr-2Nb alloy were studied. The Al loss caused an inhomogeneous microstructure. The as-build material is composed of large γ grains and small γ grains pinned by a chain-like α2 grains. The γ phase occupies 89% of the material volume and exhibits a weak texture

but the α2 phase exhibits a 14.1 times random (0001) texture with its c axis parallel to the build direction. The room temperature tensile strength of the as-build material is 503MPa but the ductility is 0. HIP and heat treatment lowered the tensile strength but improved ductility by a large extent. Up until 800℃

the TiAl-4822 with a duplex microstructure exhibits tensile strength higher than 460MPa; while the TiAl-4822 with a fully lamella microstructure exhibits tensile strength higher than 400MPa.