Singh, S and Roy, Rajat K and Ghosh, M and Mitra , A and Panda, A K (2012) Heat Treatment Induced Martensitic Accommodation and Adaptive Anisotropy in Melt Spun Ni55Mn22Ga23 (at.%) ribbons. Journal of Applied Physics, 112(10).
Full text not available from this repository. (Request a copy)Abstract
The effect of annealing on melt spun Ni55Mn22Ga23 (at. %) ribbon has been addressed in terms of structural, thermal, thermomagnetic, and magnetic field induced strain (MFIS) behaviour. In comparison to as-spun ribbons, the samples annealed within the L2(1) domain at 1073K for 30 h with subsequent furnace cooling, showed a rise in martensitic transformation temperature. This was endorsed from elec-tron microscopy studies revealing change in morphology of martensite plate and stacking of dislocations in a preferential orientation. The mechanism is associated to martensitic accommodation which enhanced ferro-elastic magnetic coupling and also lowered magnetic coercivity. Such accommodations and adaptive anisotropy improved the MFIS behavior in the annealed sample.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Shape-Memory alloys; Magnetic-Field; Atomic order; Structrual-Properties |
| Subjects: | Materials Science |
| Divisions: | Material Science and Technology |
| Depositing User: | Dr. A K Sahu |
| Date Deposited: | 04 Mar 2013 07:51 |
| Last Modified: | 16 Aug 2013 07:22 |
| URI: | http://eprints.nmlindia.org/id/eprint/6347 |
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