Two-way shape memory effect and mechanical properties of Pulse Discharge Sintered Ni2.18Mn0.82Ga

Abstract

Mechanical and shape memory properties of a polycrystalline Ni2.18Mn0.82Ga alloy prepared by a PDS (Pulse Discharge Sintering) method were investigated. It was found that the material demonstrates the two-way shape memory effect after a loading - unloading cycle performed in the martensitic state, i. e. essentially without special training. The samples exhibiting the two-way shape memory effect show a significant enhancement in the magnitude of magnetic-field-induced strain.

4 pages, 5 figures, REVTEX-4