I. V. Kireeva, Z. V. Pobedennaya, Yu. I. Chumlyakov, J. Pons, E. Cesari, I. Karaman, “Effect of orientation on the high-temperature superelasticity in Co$_{49}$Ni$_{21}$Ga$_{30}$ single crystals”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2009, Volume 35, Issue 4,Pages 72

This article is cited in 10 papers

Effect of orientation on the high-temperature superelasticity in Co$_{49}$Ni$_{21}$Ga$_{30}$ single crystals

I. V. Kireeva^a, Z. V. Pobedennaya^a, Yu. I. Chumlyakov^a, J. Pons^bc, E. Cesari^bc, I. Karaman^bc

^a Siberian Physical-Technical Institute of the Tomsk State University
^b Universitat de les Illes Balears, Departament de Fisica, E-07122 Palma de Mallorca, Spain
^c Departament of Mechanical Engineering,Texas A&M University, College Station, TX 77843, USA

Abstract: The temperature interval $\Delta T_{SE}$ of superelasticity in $[001]$-, $[\bar123]$-, and $[\bar124]$-oriented Co$_{49}$Ni$_{21}$Ga$_{30}$ (at.%) single crystals strained at compression has been studied. It is established that $\Delta T_{SE}$ in the [001]-oriented single crystal amounts to 441 K and the reversible B2-L1$_0$ martensite transformations in loaded samples take place at $T_2$ = 698 K. In $[\bar{1}23]$- and $[\bar{1}24]$-oriented samples, $\Delta T_{SE}$ decreases to 233 K and the superelasticity is observed up to $T_2$ = 523 K.

Received: 25.07.2008