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Tension-compression asymmetry of the superelastic behavior of high-strength [001]-oriented FeNiCoAlNb crystals Yu. I. Chumlyakov, I. V. Kireeva, I. V. Kuksgauzen [et al.]

Contributor(s): Chumlyakov, Yuri I | Kireeva, Irina V. физик | Kuksgauzen, Irina V | Kuksgauzen, D. A | Niendorf, Thomas | Krooß, PhilippMaterial type: ArticleArticleContent type: Текст Media type: электронный Subject(s): сверхэластичность | эффект памяти формы | монокристаллы | ферросплавыGenre/Form: статьи в журналах Online resources: Click here to access online In: Materials letters Vol. 289. P. 129395 (1-4)Abstract: Temperature dependence of the stressesrcrof stress-inducedc-a0martensitic transformations (MT) andsuperelasticity (SE) were studied in tension and compression on [001]-oriented Fe-27Ni-17Co-11.7Al-2.9Nb (FeNiCoAlNb) (at.%) crystals after two-step ageing (973 K, 0.5 h + 723 K, 3h). It was shown thatthea=drcr/dT value does not depend on the stress state (tension/compression) in the range of thestress-inducedc-a0MT. SE depends on the stress state and the maximum SE strain of 11.5% was observedin compression.
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Temperature dependence of the stressesrcrof stress-inducedc-a0martensitic transformations (MT) andsuperelasticity (SE) were studied in tension and compression on [001]-oriented Fe-27Ni-17Co-11.7Al-2.9Nb (FeNiCoAlNb) (at.%) crystals after two-step ageing (973 K, 0.5 h + 723 K, 3h). It was shown thatthea=drcr/dT value does not depend on the stress state (tension/compression) in the range of thestress-inducedc-a0MT. SE depends on the stress state and the maximum SE strain of 11.5% was observedin compression.

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