Composition dependence of phase transformation behavior and shape memory effect of Ti(Pt, Ir)

► The partial isothemal section at 1523 K was determined in Ti-Pt-Ir. ► The high-temperature shape memory effect of Ti(Pt, Ir) was investigated. ► The shape recovery ratio was 72% in Ti-10Pt-32Ir after deformation at 1123 K. ► Ir addition to TiPt is effective to improve shape memory effect of TiPt.