Title of article
Martensitic transformation and magneto-strain in melt spun NiMnGaAl Ferromagnetic Shape Memory Alloys
Author/Authors
Singh، نويسنده , , Satnam and Roy، نويسنده , , R.K. and Ghosh، نويسنده , , M. and Mitra، نويسنده , , A. K. PANDA، نويسنده , , A.K.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
5
From page
147
To page
151
Abstract
Ni55Mn22Ga23−xAlx (0 ≤ x ≤ 5) melt spun ribbons homogenized at 1073 K for 30 h exhibited an elevation in martensitic transformation onsets and a reduction in Curie temperature with increase in Al content. The phenomenon has been attributed to different site occupancy by Al, exchange coupling and paramagnetic martensite during thermal and magnetic transitions. Transmission Electron microscopy revealed systematic patterns of dislocations in alloy with x = 1, which become denser at high Al content. X = 1 alloy revealed high magnetic field induced strain (MFIS) value it is attributed to a critical combination of austenite and martensite phase.
Keywords
D. Martensitic structure , B. shape memory effect , B. Magnetic properties , B. Martensitic transformations , C. Rapid solidification processing
Journal title
Intermetallics
Serial Year
2013
Journal title
Intermetallics
Record number
1505775
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