Microstructure and Mechanical Properties of Annealed Quinary Ni-Mn-Sn-Fe-In Heusler Alloy

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

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


The tuning of Heusler alloys with respect to the stoichiometry and their effect on martensitic transformation have been investigated very little by various researchers. Thus, the effect of change in ferrous (Fe) concentration of the alloys and its effect on mechanical and magnetocaloric properties of Ni50-xFexMn30Sn20-yIny alloys were investigated where Fe was varied from x= 1, 2, 3 and 4 to find its significance. An increase of Fe concentration to Fe4 leads to a considerable improvement in the alloy's mechanical properties and crystal structure. Compressive strength of the alloy rose by 123% for Fe4 substitution. When comparing the identical materials with and without Fe addition, the ultimate stress (US) and ductility are improved by 124 and 200%, respectively, while toughness rises by 48 times. The Fe concentration variation also enabled a martensitic transformation in 36.8 to 19.83 °C range of refrigerator applications.

Original languageEnglish
Pages (from-to)303-308
Number of pages6
JournalEngineered Science
Publication statusPublished - 2022

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physical and Theoretical Chemistry
  • Chemistry (miscellaneous)
  • Materials Science(all)
  • Energy Engineering and Power Technology
  • Artificial Intelligence
  • Applied Mathematics


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