Structure and mechanical properties of Ni - 51.8 at % Ti shape memory alloy after thermomechanical cycling

• Autorzy: Blahož O. , Kursa M.
• Konferencja: Międzynarodowe Sympozjum Metody oceny struktury oraz własności materiałów i wyrobów (XXV ; 12-14.10.2010 ; Turawa, Polska)
• Języki publikacji: EN

Abstrakty

EN

This article deals with an effect of a thermo-mechanical cycling on structural and mechanical characteristics of Ni - Ti alloys, especially on Ni - 51.8 at. % Ti. Applications in modern industry often exploit materials with special properties. Ones of these materials are alloys Ni - Ti with their shape memory effect based on phase transformations in structure of these materials. For successful use in practice it is very important to know if thermomechanical loading during utilisation of shape memory behaviour changing structural or mechanical properties. For verification of these effects were prepared samples which was cycled at various conditions and then observed by metallographic methods which informed us about homogeneity of the alloy and micro-structural changes within thermo-mechanical processes. Next part of experiment consisted measurement of microhardness and stress-strain tests on cycled and non-cycled samples to evaluate effect of cycling on mechanical properties and pseudoelasticity.

Słowa kluczowe

EN

titanium; nickiel; Ti; Ni; alloy

PL

Ni; Ti; tytan; nikiel; stop

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2010
• Tom: z. 97
• Strony: 7--7
• Opis fizyczny: Bibliogr. 2 poz.

Twórcy

autor

Blahož O.

autor

Kursa M.

• Vysoká Škola Báňská - TU Ostrava, 17. listopadu 15, Ostrava - Poruba, Česká Republika,

Bibliografia

• [1] LING, H. C., KAPLOW, R. Phase Transitions and Shape Memory in NiTi. Metallurgical transactions A, 1980, vol. 11A, p. 77-83.
• [2] LIU, Y., BLANC, M., TAN, G., and others: Effect of ageing on the transformation behaviour of Ti-49.5 at. % Ni, Material science and engineering A 438–440, 2006, pp. 617-621