BSTRACTA Co-Ni-Ga high-temperature shape memory alloy has been additively manufactured by directed energy deposition. Due to the highly anisotropic microstructure

i.e. columnar grains featuring a strong near-⟨001⟩ texture in build direction

the as-built material is characterized by a very low degree of constraints and

thus

shows excellent superelasticity without conducting a post-process heat treatment. As characterized by

in situ

deformation testing and

post-mortem

microstructural analysis

additive manufacturing employing directed energy deposition seems to be highly promising for processing of shape memory alloys

which often suffer difficult workability.