Pseudoelastic Behavior

It is also possible to induce a phase transformation by applying a pure mechanical load. The result of this load application is fully detwinned martensite and very large strains are observed. If the temperature of the material is above A0f, a complete shape recovery is observed upon unloading, thus, the material behavior resembles elasticity. Thus the above-described effect is known under the name of Pseudoelastic Effect. A loading path demonstrating the pseudoelastic effect is schematically shown in Figure 5, while the resulting stress-strain diagram is shown in Figure 6.

Pseudoelastic loading path

Figure 5. Pseudoelastic loading path.

Pseudoelastic stress-strain diagram

Figure 6. Pseudoelastic stress-strain diagram.