Effect of grain size on the recovery strain in a new Ti–20Zr–12Nb–2Sn superelastic alloy

J.-J. J Gao (1) , I. Thibon (1) , P. Castany (1) , T. Gloriant (1)

1 ISCR - Institut des Sciences Chimiques de Rennes

In this study, the superelastic performance of a new β-type Ti–20Zr–12Nb–2Sn alloy has been investigated by means of cyclic tensile tests, electron back-scattered diffraction (EBSD) and in situ synchrotron X-ray diffraction (SXRD). It is shown that the β-grain size has an important influence on the superelastic property and for the same crystallographic texture, the smaller the grain size, the greater the recovery strain.

Mots clés: Titanium alloy; Texture; Superelasticity; Grain size; titanium alloy; superelasticity; grain size; texture

Domaines: Mécanique des matériaux [physics.class-ph]

J.-J. J Gao, I. Thibon, P. Castany, T. Gloriant. Effect of grain size on the recovery strain in a new Ti–20Zr–12Nb–2Sn superelastic alloy. Materials Science and Engineering: A, 2020, 793, pp.139878. ⟨10.1016/j.msea.2020.139878⟩. ⟨hal-02936692v2⟩