Martensitic transformation behavior and structural characteristics of annealed Ni-Mn-Sn-Fe-In heusler alloy

S. Nambiar Sandeep, B. R.N. Murthy, Sharma Sathyashankara, A. A. Prasanna

Research output: Contribution to journalConference articlepeer-review

Abstract

Ni-Mn based heusler alloy with Ni50-xFexMn30Sn20-yIny where 1<=x<=4; 2<=y<=8 are studied for their structural as well as mechanical characteristics using various testing facility such as field emission scanning electron microscope, energy dispersion spectrometry, differential scanning calorimetry and Vickers hardness equipment. From the general understanding the materials are to display a transformation of austenite-martensite. The materials are seen to be showing this transformation in and around near room temperature. The optical and FESEM imaging of the specimen show that during annealing heating to high temperature to longer time, the diffusion kinetics are activated at faster rate so that the dendritically structure is annihilated to develop well distributed grain structure. The coarser dendrites seems to be broken and fine grain, well dispersed phases are formed. X-ray diffraction confirms the peak split and martensitic transformation in the system of alloys. DSC results confirm the martensitic transformation around room temperature.

Original languageEnglish
Article number012231
JournalJournal of Physics: Conference Series
Volume2070
Issue number1
DOIs
Publication statusPublished - 17-11-2021
Event2nd International Conference on Advances in Physical Sciences and Materials 2021, ICAPSM 2021 - Virtual, Online, India
Duration: 12-08-202113-08-2021

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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