BARC/PUB/10//0987

 
 

Deformation Studies of Ni55Fe19Ga26 Ferromagnetic Shape Memory Alloy

 
     
 
Author(s)

Biswas, A.; Krishnan, Madangopal

ABSTRACT

Ni-Fe-Ga-based alloys form a new class of Ferromagnetic Shape Memory Alloys. The problem of brittleness of the Ni-Mn-Gabased alloys can largely be overcome in case of Ni–Fe–Ga-based ones by introducing a disordered fcc g-phase. The current study explores thermo-mechanical processing of this alloy using an off-stoichiometric Ni55Fe19Ga26 alloy containing the ductile g-phase. Hot-rolling of Ni55Fe19Ga26 alloy was carried out at 950°C and 1000°C, both with and without mild steel jacket. The microstructure of the hot-rolled products was analyzed in detail. Microtexture analyses were carried out both for the L21 and the g-phase independently using Electron Back-Scattered Diffraction technique.

 
 
SIRD Digital E-Sangrahay