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

TL;DR

This study investigates the mechanical and shape memory properties of Ni2.18Mn0.82Ga alloy prepared via Pulse Discharge Sintering, highlighting its two-way shape memory effect and increased magnetic-field-induced strain.

Contribution

It demonstrates that PDS-processed Ni2.18Mn0.82Ga exhibits a two-way shape memory effect without special training, with enhanced magnetic response.

Findings

Two-way shape memory effect observed after one cycle

Significant increase in magnetic-field-induced strain

Material shows promising shape memory properties

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.