Twinning in Ni-Fe-Ga-Co shape memory alloy: Temperature scaling beyond the Seeger model

Comparison between the temperature dependence of the macroscopic de-twinning stress σc(T) and the micro-yield stress σε(T), corresponding to a constant value of reversible anelastic strain εan = 6 × 10− 8 in a martensitic Ni49Fe18Ga27Co6 alloy.118