Influence of Fe-addition on Ni-Mn-Ga ferromagnetic shape-memory alloys

D. E. Soto-Parra, F. Alvarado-Hernandez, R. A. Ochoa-Gamboa, H. Flores-Zuñiga, David Rios-Jara, Xavier Moya, Lluís Mañosa, Antoni Planes, Seda Aksoy, Mehmet Acet, Thorsten Krenke

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The effect of Fe-addition on the structural and magnetic properties of Ni-Mn-Ga has been studied by substituting systematically each atomic species by Fe. Transition temperatures (structural and magnetic) and martensitic transition entropy and enthalpy changes have been obtained from magnetic and calorimetric measurements. From these results the influence of Fe-addition on the relative phase stability of the martensitic and intermediate phases has been analyzed. Deviations from the reported scaling of transition temperatures with e/a for Ni-Mn-Ga are obtained in the studied quaternary system.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Martensitic Transformations, ICOMAT-08
Pages573-576
Number of pages4
Publication statusPublished - 2009
Externally publishedYes
Event12th International Conference on Martensitic Transformations, ICOMAT-08 - Santa Fe, NM, United States
Duration: 29 Jun 20085 Jul 2008

Publication series

NameProceedings of the International Conference on Martensitic Transformations, ICOMAT-08

Conference

Conference12th International Conference on Martensitic Transformations, ICOMAT-08
Country/TerritoryUnited States
CitySanta Fe, NM
Period29/06/085/07/08

Keywords

  • Fe-addition
  • Magnetic shape-memory alloys
  • Ni-Mn-Ga
  • Phase stability

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