Figure 4.
Evaluation of the two-step stress-recovery behavior of PEU: Influence of twofold programming when varying the lower deformation temperature Td,low and the maximum strain applied εm,low. Relation between Td,low and the stress recovery temperature Tσ,low ((a), with best fit line) and between Td,low and the stress recovery temperature Tσ,high (b). Impact of εm,low upon both maximum recovery stress σmax,low (c) and maximum recovery stress σmax,high (d). The errors in (c,d) were estimated from repeated measurements.