Effect of reactive stresses on the heat of martensitic transformations in titanium nickelide |
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| Authors: | S A Egorov |
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| Institution: | (1) Research Institute of Mathematics and Mechanics, St. Petersburg State University, Universitetskiĭ pr. 28, St. Petersburg, 198905, Russia |
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| Abstract: | Calorimetric studies of titanium nickelide show that thermally reversible prestraining does not affect the heat of the B2 → R and R → B2 martensitic transformations. At the same time, reactive stresses induced by straining under constrained conditions are found to decrease the heat of the B19′ → B2, R → B19′, B2 → R, and R → B2 transformations by a factor of 1.16–1.40. A formula describing this effect is proposed. |
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