Diffusive shape memory effect in the V-H system
The effect of cold plastic deformation on the occurrence of the diffusive shape memory effect in the V-H system due to redistribution of the β-phase arising from the Gorskii effect is investigated by means of three-point bending tests. The slight plastic deformation produced by the bending in the region of the α-solid solution gives rise to a diffusive shape memory effect when there is no load, whereas large deformations completely suppress the diffusive shape memory effect. It is suggested that the reason for the occurrence and disappearances of the diffusive shape memory effect is internal residual stresses of a different scale level which occur after cold plastic deformation.
KeywordsResidual Stress Plastic Deformation Shape Memory Large Deformation Memory Effect
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