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

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.Fil: Sobrero, Cesar Enrique. University of Kassel; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lauhoff, Christian. University of Kassel; AlemaniaFil: Langenkämper, Dennis. Ruhr Universität Bochum; AlemaniaFil: Somsen, Christoph. Ruhr Universität Bochum; AlemaniaFil: Eggeler, Gunther. Ruhr Universität Bochum; AlemaniaFil: Chumlyakov, Yuri I.. Tomsk State University; RusiaFil: Niendorf, Thomas. University of Kassel; AlemaniaFil: Krooß, Philipp. University of Kassel; Alemani