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

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 bim...

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Published inBulletin of the Russian Academy of Sciences. Physics Vol. 85; no. 7; pp. 745 - 750
Main Authors Shelyakov, A. V., Sitnikov, N. N., Zaletova, I. A., Borodako, K. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.07.2021
Springer Nature B.V
Subjects
Amorphous alloys
Binary systems
Columnar structure
Copper
Crystal structure
Crystallization
Hadrons
Heavy Ions
Martensitic transformations
Nickel base alloys
Nickel compounds
Nuclear Physics
Phase composition
Physics
Physics and Astronomy
Rapid quenching (metallurgy)
Shape memory alloys
Tensile stress
Titanium compounds
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Summary: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.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873821070200