The formation of texture through thermomechanical treatment was investigated in Mg-18.8 atÿ Sc shape memory alloy to enhance its
superelasticity at room temperature. The samples were cold rolled in an ÿ phase or in a ÿ phase and then nally heat treated at 690ÿ followed
by water quenching to obtain a ÿ phase. In the case of cold rolling in the ÿ phase, a basal-plane texture was formed, while no preferential texture
was observed along in-plane direction. After the nal heat treatment, {011}<uvw>ÿ transformation texture was obtained, according to
Burgers relationship, indicating no improvement of the superelasticity along in-plane direction. In the case of the cold rolling in the ÿ phase, a
weak {111}<011>ÿ recrystallization texture was obtained. The sample showed about 0.65ÿ superelastic tensile strain along rolling direction,
while that along transverse direction ÿ//~<113>ÿÿ showed only about 0.43ÿ. This trend is in good agreement with the orientation depen-dence
on the transformation strain, but, the obtained superelastic strain was much lower than the expected value, which is due to the weak tex-ture
and suggests the existence of a strong grain constraint in the Mg-Sc shape memory alloy.