Mitra, A and Panda, A K (2008) Development of Ni-Mn-Ga based Ferromagnetic Shape Memory Alloy by Rapid Solidification Technique. Ferromagnetic Shape Memory Alloys Book Series: Advanced Materials Research , 52 . pp. 17-27.
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solidification route by melt spinning has been adopted for preparation of a Ni52.5Mn24.5Ga23 (at %) ferromagnetic shape memory alloy in the form of ribbons. In the as-spun state, the ribbon revealed a predominant austenitic L2(1) structure in combination with martensitic feature as observed from x-ray diffraction studies. Transmission electron microscopic (TEM) evaluation showed these features in the form of martensitic plates. At low temperature, martensite to austenite transformation was exhibited by an increase in magnetization during heating cycle. The reverse effect was observed during cooling cycle. Annealing temperature and magnetising field was also found to effect this transformation.
|Uncontrolled Keywords:||Shape memory alloy; Melt-spun ribbons; martensitic transformation; Magnetisation|
|Divisions:||Material Science and Technology|
|Deposited By:||Sahu A K|
|Deposited On:||13 Jul 2011 12:14|
|Last Modified:||25 Jan 2012 10:47|
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