Shape-memory alloys (SMA’s) have unique thermal and mechanical properties of great potential value in aerospace applications. Deformed below their martensitic transformation temperatures, SMAs regain their shape upon heating. SMAs, if properly "trained” (thermo-mechanically processed), can undergo repeated, predictable shape changes simply by heating and cooling. This makes them very attractive as actuator materials. The shape memory affect is possible by suppressing dislocation motion during deformation in favor of self-accommodating martensitc (displacive phase) transformation. Displacive phase transformations occur in specific crystallographic habit planes. Common metal working processes (e.g., extrusion & rolling) used to shape the alloy into desired component can introduce crystallographic texture and affect grain structure. In this paper we present the effects of the grain size refinement, on the shape memory behaviors of NiTi, and NiTi/Cu, alloys by utilizing a severe plastic deformation process (via Equal Channel Angular Extrusion).