Figure 7
(a) The applied strain dependence of stress hysteresis at selected strain rates at 293 K and 290 K. The dash lines indicate the value of critical stress (σcr). The hatched green area indicates the appearance of temporary residual strain. (b) Stress hysteresis vs. ∆T profiles for Ni54Fe19Ga27 single crystal in different deformation conditions at 293 K. Stress hysteresis as a function of ∆T under incremental strain from 1% to 5% by a step of 0.5% at 0.003 s−1. Stress hysteresis as a function of ∆T under incremental strain from 1% to 6% by a step of 0.5% at 0.012 and 0.03 s−1. The dash lines and arrows indicate the variation tendency of σhys vs. ∆T.
