The effect of hydrogen on shape memory effect and superelasticity in single-phase nickel titanium single crystals I. V. Kireeva, Y. I. Chumlyakov, Y. N. Platonova
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ArticleSubject(s): сплавы с памятью формы | сверхэластичность | водород | никелид титанаGenre/Form: статьи в журналах Online resources: Click here to access online
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Technical physics letters Vol. 41, № 3. P. 284-287Abstract: The effect of hydrogen on temperature dependences of axial stresses σcr(T), shape memory effect, and superelasticity of [1¯11]-oriented Ti-50.7% Ni (at %) alloy single crystals has been studied under tensile strain in a single-phase state. It is established that the level of σcr(Ms) and σcr(B2) stresses is determined by the state of hydrogen (in solid solution or titanium hydride particles) in the initial B2 phase. Superelasticity up to 2.0–2.5% occurs when hydrogen is present in the solid solution.
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The effect of hydrogen on temperature dependences of axial stresses σcr(T), shape memory effect, and superelasticity of [1¯11]-oriented Ti-50.7% Ni (at %) alloy single crystals has been studied under tensile strain in a single-phase state. It is established that the level of σcr(Ms) and σcr(B2) stresses is determined by the state of hydrogen (in solid solution or titanium hydride particles) in the initial B2 phase. Superelasticity up to 2.0–2.5% occurs when hydrogen is present in the solid solution.
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