Strain glass-induced switch from transformation plasticity to reversible superelasticity in Ti-Zr-Ni-Cu alloys

Reversibility of phase transformation, a basic requirement for functional properties shape memory alloys, such as superelasticity, is severely affected by plastic deformation. Here, strain glass has been utilized to improve the reversibility transformation. The incorporation Al into Ti-Zr-Ni-Cu induces and endows alloy with reversible transformation thus ideal superelasticity. In situ x-ray diffraction dynamic mechanical experiments were verify mechanism conversion from plasticity This work provides new way expands practical implications glass.