Abstract
The amorphous melt‐spun (MS) Ti50Ni25Cu25 alloy is subjected to high‐pressure torsion (HPT) at temperatures of 20‐150 °C. The bright‐field (BF) TEM images of the alloy change as a result of HPT processing, the view of the bright‐field image depends on the temperature of HPT processing. HPT processing leads to a decrease in the energy of structural relaxation during heating up to 400 °C, in comparison with the initial MS ribbons. The temperature of crystallization of the MS Ti50Ni25Cu25 alloy decreases after HPT processing by 40–20 °C (depends on the temperature of HPT processing). In the MS Ti50Ni25Cu25 alloy, HPT processing and subsequent annealing produces noticeably finer grains than annealing at 450 °C of the initial MS alloy. Consequently, HPT processing alters the crystallization kinetics of the MS Ti50Ni25Cu25 alloy.
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