ANALYSIS OF CHEMICAL COMPOSITION AND STUDY OF SURFACE TOPOGRAPHY OF NiMnGa ALLOY IN DELIVERY CONDITION

J. Kaleta, D. Lewandowski, D. Sawicka

Abstract

The object of this work was an examination of the microstructure and mapping of chemical elements at the surface of NiMnGa. This material is distinguished by magnetostriction (even 6% of its length), shape memory and magnetocaloric effect. The sample was mounted and then examined with scanning electron microscope using detectors: SE , BSE and EDX (mapping). The structure on the obtained images can be defined as martensitic. The review of microcracks at the surface showed a non-chaotic distribution. The results of mapping of the chemical elements at the surface confirmed the uniform distribution of component.

Keywords

SMART, surface topography, mapping, Heusler alloys

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IMEKO-YSESM-2012-29.pdf

DOI

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IMEKO TC

TC15 - Experimental Mechanics

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