Effect of stress-induced martensite ageing on the one-way and two-way shape memory effect of [0 1 1]-oriented TiNiCu crystals under tension I. V. Kireeva, Z. V. Pobedennaya, Y. I. Chumlyakov, E. S. Marchenko
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ArticleContent type: Текст Media type: электронный Subject(s): эффект памяти формы | монокристаллы | двусторонний эффект памяти формы | деформация растяжения | мартенситное старение | односторонний эффект памяти формыGenre/Form: статьи в журналах Online resources: Click here to access online
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Materials letters Vol. 305. P. 130773 (1-3)Abstract: In this paper, for the first time, we found that at tension value of the one-way shape memory effect (SME) was 9.9% at external stresses of 250 MPa of the [011]-oriented Ti50Ni40Cu10 alloy (at%) crystals, which exceeds the theoretical value 7.14% for the B2-B19-B19′martensitic transformation (MT) under tension. It was shown that stress-induced martensite ageing (SIM-ageing) creates conditions for the realization of a tensile two-way SME (TWSME) of 2.5% and does not decrease the value of the one-way SME.
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In this paper, for the first time, we found that at tension value of the one-way shape memory effect (SME) was 9.9% at external stresses of 250 MPa of the [011]-oriented Ti50Ni40Cu10 alloy (at%) crystals, which exceeds the theoretical value 7.14% for the B2-B19-B19′martensitic transformation (MT) under tension. It was shown that stress-induced martensite ageing (SIM-ageing) creates conditions for the realization of a tensile two-way SME (TWSME) of 2.5% and does not decrease the value of the one-way SME.
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