Effect of Electric Pulse Treatment under Tensile Stress on the Properties of Rapidly Quenched Ti50Ni20Cu30 Alloy

Autor: I. A. Zaletova, Nikolay Sitnikov, Alexander Shelyakov, K. A. Borodako
Rok vydání: 2021
Předmět:
Zdroj: Bulletin of the Russian Academy of Sciences: Physics. 85:745-750
ISSN: 1934-9432
1062-8738
DOI: 10.3103/s1062873821070200
Popis: Amorphous ribbons from a rapidly quenched alloy of the TiNi–TiCu quasi-binary system with copper content of 30 at % are crystallized via electric pulse treatment with variable durations of impact in the range of 1 to 100 ms at external tensile stress of up to 250 MPa. It is shown that the formed bimorph structure of columnar and coarse crystals is characterized by considerable differences when compared to a rapidly quenched alloy with 25 at % copper. An increase in tensile stress does not affect the phase composition or microstructure of the alloy, but it does lower the critical temperatures of martensitic transformation.
Databáze: OpenAIRE