Publications

Impact of test temperature on functional degradation in Fe-Ni-Co-Al-Ta shape memory alloy single crystals

Sobrero, C. and Lauhoff, C. and Langenkämper, D. and Somsen, C. and Eggeler, G. and Chumlyakov, Y.I. and Niendorf, T. and Krooß, P.

MATERIALS LETTERS
Volume: 291 Pages:
DOI: 10.1016/j.matlet.2021.129430
Published: 2021

Abstract
The present paper focuses on the analysis of functional fatigue properties in 〈001〉-oriented single crystalline Fe-Ni-Co-Al-Ta shape memory alloys. Superelastic cycling experiments up to 4.5% at different temperatures were conducted and revealed excellent cyclic stability at lower testing temperatures. Transmission electron microscopy observations shed light on the influence of precipitation and dislocation activity on functional stability. © 2021

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