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Two Way Memory Effect
The two-way shape memory effect is the effect that the material remembers two different shapes: one at low temperatures, and one at the high temperature shape. A material that shows a shape memory effect during both heating and cooling is called two-way shape memory (plate 10). This can also be obtained without the application of an external force (intrinsic two-way effect).
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Plate 10 Two Way Memory Effect |
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In the figure above (plate 10), the procedures are very similar: starting from martensite (a), adding a reversible deformation for the one-way effect or severe deformation with an irreversible amount for the two-way (b), heating the sample (c) and cooling it again (d).
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