Phase transformations in crystalline Ti-Ni-Cu alloy upon severe plastic deformation

X-ray diffraction and transmission electron microscopy were used to study features of the structural and phase transformations of initially crystalline T1 50 Ni 25 Cu 25 alloy upon severe plastic deformation in a Bridgman cell. Three cycles of successive phase transitions of the crystal ⟹ amorphous...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2010-11, Vol.74 (11), p.1515-1521
Main Authors: Glezer, A. M., Nosova, G. I., Sundeev, R. V., Shalimova, A. V.
Format: Article
Language:English
Subjects:
Bridgman method
Crystal growth
Crystal structure
Deformation mechanisms
Elastic deformation
Energy dissipation
Hadrons
Heavy Ions
Nuclear Physics
Phase transitions
Physics
Physics and Astronomy
Plastic deformation
Proceedings of the First Moscow Readings on Materials Strength Dedicated to the 85th Anniversary of the Birth of Prof. V.L. Indenbom and the 90th Anniversary of the Birth of Prof. L.M. Utevskii
Superposition (mathematics)
Titanium alloys
Titanium base alloys
Transmission electron microscopy
X-ray diffraction
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Summary:X-ray diffraction and transmission electron microscopy were used to study features of the structural and phase transformations of initially crystalline T1 50 Ni 25 Cu 25 alloy upon severe plastic deformation in a Bridgman cell. Three cycles of successive phase transitions of the crystal ⟹ amorphous state and amorphous state ⟹ crystal type were revealed under continually increasing deformation. The results are explained within the superposition of different channels of elastic energy dissipation at severe plastic deformation.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873810110067