Publications

Influence of Cr Alloying (1.5 to 5 at.%) on Martensitic Phase Transformation Temperatures in Co-Ni-Ga-Cr Thin Films

Decker, P. and Fortmann, J. and Salomon, S. and Krooß, P. and Niendorf, T. and Ludwig, Al.

SHAPE MEMORY AND SUPERELASTICITY
Volume: 5 Pages: 106-112
DOI: 10.1007/s40830-019-00209-6
Published: 2019

Abstract
A Co-Ni-Ga-Cr thin film materials library with a Cr concentration gradient ranging from 1.5 at.% to 5 at.% was magnetron-sputtered to determine the influence of Cr additions on the martensite transformation temperature of non-stoichiometric Co2NiGa-based Heusler alloys. An increase of the phase transformation temperature from 30 °C for 5 at.% Cr up to 100 °C for 1.5 at.% Cr was determined by a peak fitting analysis of temperature-dependent X-ray diffraction data. © 2019, ASM International.

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