Magneto-Mechanical Properties and Magnetocaloric Behaviour of Rapidly Solidified Melt-Spun Ni50Mn28Ga22 Heusler Alloy

D. K. Satapathy, P. D. Babu, I. A. Al-Omari, S. Aich*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Rapidly solidified melt-spun ribbons of Ni50Mn28Ga22 Heusler alloy were prepared at two different wheel speeds of 1300 and 1600 RPM and were annealed at different temperatures over different time periods to study the magneto-mechanical properties and magnetocaloric behaviour of the alloy. Annealed ribbons showed higher MFIS (magnetic field induced strain) than as-spun ribbons; ribbon prepared at 1300 RPM and annealed at 900 °C for 5 h (1300NMG5 900) showed the highest MFIS value ~1547 με. From the texture analysis, a higher magnetization value at 90° angle of alignment of the sample surface with respect to the field direction indicates that a <110> easy axis might be a possibility. Magnetocaloric behaviour of the ribbons were investigated with the help of SQUID magnetometer. ∆Sm values were calculated from the SQUID data which were further used to calculate the RC (refrigeration capacity) values. The highest RC value was obtained for1300NMG5 800; 273 J/kg.

Original languageEnglish
Title of host publicationTMS 2022 151st Annual Meeting and Exhibition Supplemental Proceedings
PublisherSpringer Science and Business Media Deutschland GmbH
Pages408-415
Number of pages8
ISBN (Print)9783030923808
DOIs
Publication statusPublished - 2022
Event151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022 - Anaheim, United States
Duration: Feb 27 2022Mar 3 2022

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

Conference151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022
Country/TerritoryUnited States
CityAnaheim
Period2/27/223/3/22

Keywords

  • Heusler alloy
  • Magnetic field induced strain
  • Magneto-mechanical properties

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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