Mechanical and functional properties of commercial alloy TN-1 semiproducts fabricated by warm rotary forging and ECAP


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Resumo

The influence of various thermomechanical treatment schemes, which include rotary forging and severe plastic deformation by equal-channel angular pressing, on the structure and the mechanical and functional properties of TiNi alloys is studied. Treatment according to these schemes is shown to result in the formation of a mixed nano- and submicrocrystalline structure with a high dislocation density, which ensures high mechanical (σ0.2 = 760–954 MPa, σu = 917–1097 MPa, δ = 21–51%) and functional (maximum completely recoverable strain of 6.8–8%) properties.

Sobre autores

V. Andreev

Matek-Sma Ltd.

Autor responsável pela correspondência
Email: andreev.icmateks@gmail.com
Rússia, Karier str., 2A-1, Moscow, 117339

V. Yusupov

Baikov Institute of Metallurgy and Materials Science

Email: andreev.icmateks@gmail.com
Rússia, Leninskii pr. 49, Moscow, 119991

M. Perkas

Baikov Institute of Metallurgy and Materials Science

Email: andreev.icmateks@gmail.com
Rússia, Leninskii pr. 49, Moscow, 119991

V. Prosvirnin

Baikov Institute of Metallurgy and Materials Science

Email: andreev.icmateks@gmail.com
Rússia, Leninskii pr. 49, Moscow, 119991

A. Shelest

Baikov Institute of Metallurgy and Materials Science

Email: andreev.icmateks@gmail.com
Rússia, Leninskii pr. 49, Moscow, 119991

S. Prokoshkin

National University of Science and Technology MISiS

Email: andreev.icmateks@gmail.com
Rússia, Leninskii pr. 4, Moscow, 119049

I. Khmelevskaya

National University of Science and Technology MISiS

Email: andreev.icmateks@gmail.com
Rússia, Leninskii pr. 4, Moscow, 119049

A. Korotitskii

National University of Science and Technology MISiS

Email: andreev.icmateks@gmail.com
Rússia, Leninskii pr. 4, Moscow, 119049

S. Bondareva

National University of Science and Technology MISiS

Email: andreev.icmateks@gmail.com
Rússia, Leninskii pr. 4, Moscow, 119049

R. Karelin

Baikov Institute of Metallurgy and Materials Science; National University of Science and Technology MISiS

Email: andreev.icmateks@gmail.com
Rússia, Leninskii pr. 49, Moscow, 119991; Leninskii pr. 4, Moscow, 119049


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