Martensitic Transformation and Shape Memory Effect in Polycomponent TiNi-Based Alloys

V.N. Khachin,; V.P. Voronin; V.P. Sivokha; V.G. Pushin

doi:10.1051/jp4/199558707

Issue		J. Phys. IV France Volume 05, Number C8, Décembre 1995 International Conference on Martensitic Transformations – ICOMAT 95


Page(s)		C8-707 - C8-712
DOI		https://doi.org/10.1051/jp4/199558707
Published online		14 July 2014

J. Phys. IV France 05 (1995) C8-707–C8-712

Martensitic Transformation and Shape Memory Effect in Polycomponent TiNi-Based Alloys

V.N. Khachin,¹, V.P. Voronin¹, V.P. Sivokha¹ and V.G. Pushin²

¹ The Centre of Science State "The Institute of Strength Physics and Materials Science", Siberian Branch, Russian Academy of Science, Tomsk 634055, Russia
² The Institute of Metal Physics, Ural Branch, Russian Academy of Science, Ekaterinburg 620219, Russia

Abstract

The results of martesitic transformation (MT) and shape memory effect (SME) in quaternary Ti₅₀(NiCoCu)_50’ Ti₅₀(NiFeCu)₅₀ and (TiAl)₅₀(NiCu)₅₀ alloys studies arc generalized in this paper. On alloying TiNi simultaneously by two elements, their individual effect on MT and SME is conserved. Martensitic transformations B2→R and B2→B19' are almost simultaneously realizing in a binary TiNi. One can selectively control each of two MT channels by selecting property of alloying elements. As a result, the alloys having any sequences of MT and their realizations temperatures, including simultaneous realization of two MTs at low temperatures, which was not observed earlier, can be produced.