Phase composition, microstructure, multiple shape memory effect of TiNi50−xVx (x = 1; 2; 4 at.%) system alloys E. S. Marchenko, A. N. Monogenov, A. A. Klopotov [et al.]
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ArticleContent type: Текст Media type: электронный Subject(s): никелид титана | легирование | эффект памяти формы | ванадий | мартенситное превращение | микроструктураGenre/Form: статьи в журналах Online resources: Click here to access online
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Materials Vol. 15, № 23. P. 8359 (1-15)Abstract: The phase composition, microstructure, and multiple shape memory effect of TiNi50−xVx alloys were studied in this work. The phase composition of the TiNi50−xVx system is the TiNi matrix, spherical particles of TiNiV, the secondary phase Ti2Ni(V). Doping of TiNi alloys with vanadium atoms leads to an increase in the stability of high-temperature B2 and rhombohedral R-phases. An increase in the atomic volume with an increase in the concentration of the alloying element V from 1 to 4 at.% was established. Vanadium doping of the Ti–Ni–V system alloys eads to an increase in the temperature interval for the manifestation of the multiple shape memory effect. It has been established that the value of the reversible deformation of the multiple shape memory effect both during heating and during cooling increases linearly from 2 to 4% with an increase in the vanadium concentration.
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The phase composition, microstructure, and multiple shape memory effect of TiNi50−xVx alloys were studied in this work. The phase composition of the TiNi50−xVx system is the TiNi matrix, spherical particles of TiNiV, the secondary phase Ti2Ni(V). Doping of TiNi alloys with vanadium atoms leads to an increase in the stability of high-temperature B2 and rhombohedral R-phases. An increase in the atomic volume with an increase in the concentration of the alloying element V from 1 to 4 at.% was established. Vanadium doping of the Ti–Ni–V system alloys eads to an increase in the temperature interval for the manifestation of the multiple shape memory effect. It has been established that the value of the reversible deformation of the multiple shape memory effect both during heating and during cooling increases linearly from 2 to 4% with an increase in the vanadium concentration.
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