Phase transformations in Zr–29.56 at.% Cu–19.85 at.% Ni melt-spun high-temperature shape memory alloy

The present paper focuses on the phase transformations during crystallization of the melt-spun Zr–29.56 at.% Cu–19.85 at.% Ni high-temperature shape memory alloy (HTSMA). This alloy exhibits a martensitic transformation in the bulk polycrystalline state at temperatures above crystallization of the metallic glass with the same composition. The crystallization kinetics were investigated by differential scanning calorimetry. The intermediate and final products of crystallization for this HTSMA were studied by means of transmission electron microscopy. The chain of the transformations starting from crystallization and ending at martensitic transformation will be described. Perspectives of the thin film production of Zr-based HTSMA will be discussed.