Martensitic transformation of Ni–Fe–Ga magnetic shape memory alloys

The effects of the Ni and Ga content on the martensitic transformation of Ni–Fe–Ga alloys with composition close to Ni55Fe17.5Ga27.5 were investigated. The DSC results show that the martensitic transformation temperatures increase with Ni addition or Ga depletion. A complete thermoelastic intermarte...

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Veröffentlicht in:	Journal of alloys and compounds 2004-12, Vol.385 (1-2), p.144-147
Hauptverfasser:	Zheng, H.X., Xia, M.X., Liu, J., Li, J.G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Elasticity, elastic constants Exact sciences and technology Magnetic properties and materials Magnetic shape memory alloy Martensitic transformation Martensitic transformations Materials science Mechanical and acoustical properties of condensed matter Mechanical properties of solids Ni–Fe–Ga Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Studies of specific magnetic materials
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Beschreibung
Zusammenfassung:	The effects of the Ni and Ga content on the martensitic transformation of Ni–Fe–Ga alloys with composition close to Ni55Fe17.5Ga27.5 were investigated. The DSC results show that the martensitic transformation temperatures increase with Ni addition or Ga depletion. A complete thermoelastic intermartensitic transformation and retransformation in Ni58Fe17.5Ga27.5 alloy in the vicinity of 370K was observed, the hysterisis of martensitic and intermartensitic transformation are 10.54 and 5.07K, respectively.
ISSN:	0925-8388 1873-4669
DOI:	10.1016/j.jallcom.2004.04.124