Temperature dependence of inelastic recoverable strain and degree of shape recovery in coarse-grained samples of Ti49.3Ni50.7 (at%) in the absence of plastic deformation

Influence of the initial structural-phase state on inelastic and plastic strains behavior in coarse-grained samples of the Ti49.3Ni50.7 (at.%) alloy

“…In conclusion, it should be emphasized that the ratio of γ SIS and the plastic strain generated during loading depends on the ratio of the martensitic shear stress (or the stress of reorientation and detwinning of the domains of the martensitic phase B19' at T def <M F ) and the yield stress. According to [10] in the temperature range from 164K to 281K, the difference between the yield stress and the martensitic shear stress is maximum and exceeds 290 MPa, and at T def above 299K this value decreases to ~ 50 MPa and less. Thus, the temperature dependences of the summary inelastic strain and plastic strain are due to the relationship between the yield stress and martensitic shear stress at different T def.…”