Effect of Heat-Treatment on the Phases of Ni-Mn-Ga Magnetic Shape Memory Alloys

Abstract:

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The Heusler alloys Ni50Mn25+xGa25-x display magnetic shape memory effect (MSM) with very fast and large reversible strain under magnetic fields. This large strain and the speed of reaction make MSM alloys attractive as smart materials. Our crystallographic investigation of these alloys, focused on non-stoichiometric composition with excess of manganese. Using neutron diffraction, we revealed the necessary processing parameters to achieve and preserve the homogeneous metastable one-phase martensitic structure that is needed for an MSM effect at room temperature.

Info:

Periodical:

Solid State Phenomena (Volumes 152-153)

Edited by:

N. Perov

Pages:

497-500

DOI:

10.4028/www.scientific.net/SSP.152-153.497

Citation:

P. Ari-Gur et al., "Effect of Heat-Treatment on the Phases of Ni-Mn-Ga Magnetic Shape Memory Alloys", Solid State Phenomena, Vols. 152-153, pp. 497-500, 2009

Online since:

April 2009

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Price:

$35.00

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