Indian Journal of Science and Technology
Year: 2022, Volume: 15, Issue: 39, Pages: 1997-2003
Shailendra V Dhanal1*, Husainkhan Devadi1, V G Akkimardi2, S A Kori3
1Sanjay Ghodawat University, Kolhapur, Maharashtra, India
2Basaveshwar Engineering College, Bagalkot Karnataka, India
3Central University of Andhra Pradesh, Anantapur, Andhra Pradesh, India
Email: [email protected]
Received Date:19 April 2022, Accepted Date:12 September 2022, Published Date:17 October 2022
Objective: In this work, ternary Ni-Mn-Al Heusler alloy powder samples were fabricated using mechanical alloying technique to study its alloy formation mechanism and the effects of mechanical alloying on the investigated properties. Methods: The samples were prepared using high energy planetary ball mill under argon conditions. The milling time of 0 h (hour/hours), 5 h, 10 h and 15 h were selected to see the progress of alloy formation. The microstructural, compositional, thermal and magnetic studies of ball milled powder samples were conducted. Findings: Compositional study reveals stoichiometric Heusler composition (X2YZ) of Ni-Mn-Al alloy with no contamination. The optimum milling time required for the formation of alloy by mechanical alloying resulted through the proper selection of milling parameters. The average crystallite size obtained reveals that nanocrystalline structure of Ni-Mn-Al alloy was achieved during the ball milling operation. The successive heating of powder particles in differential scanning calorimetry showed crystallization and alloy formation. Novelty/Applications: The magnetic study indicated soft ferromagnetic nature of the selected ball milled powder sample suggesting the alloy can be developed for possible ferromagnetic shape memory alloy applications.
Keywords: Ni-Mn-Al; Heusler alloy; Mechanical alloying; Ball milling; Structural properties
© 2022 Dhanal et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)
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