One-way shape memory effect due to stress-assisted magnetic field-induced phase transformation in Ni2MnGa magnetic shape memory alloys

H. E. Karaca, I. Karaman, B. Basaran, D. C. Lagoudas, Y. I. Chumlyakov, H. J. Maier

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

One-way shape memory effect is achieved utilizing stress-assisted field-induced martensitic phase transformation in Ni2MnGa magnetic shape memory alloy single crystals. Depending on temperature, one-way and reversible magnetic field-induced strains of up to 3.1% and 0.3% are attained under stresses as high as 110 MPa and 24 MPa, respectively. These bias stress levels are more than one order of magnitude higher than the previously reported values obtained from field-induced martensite reorientation.

Original languageEnglish
Pages (from-to)803-806
Number of pages4
JournalScripta Materialia
Volume55
Issue number9
DOIs
StatePublished - Nov 2006

Bibliographical note

Funding Information:
This work was supported by the US National Science Foundation—Division of Materials Research, Contract No. 0244126, the US Civilian Research and Development Foundation, Grant No. RUE1-2690-TO-05, and the Deutsche Forschungsgemeinschaft.

Keywords

  • Ferromagnetic materials
  • Magnetic field-induced shape change
  • Magnetic shape memory alloys
  • Martensitic phase transformation

ASJC Scopus subject areas

  • Materials Science (all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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