| Autor: |
Lauhoff, C., Degener, S., Bolender, A., Liehr, A., Hübner, L., Frenck, J.-M., Molotnikov, A., Niendorf, T. |
| Zdroj: |
Shape Memory and Superelasticity; September 2024, Vol. 10 Issue: 3 p326-333, 8p |
| Abstrakt: |
Heusler-type Co–Ni–Ga shape memory alloys attracted significant attention due to their excellent functional properties in single-crystalline state under both compressive and tensile loading. The present study investigates the superelastic deformation behavior under torsion. Using a newly installed torsion testing setup, in situ synchrotron diffraction was carried out on single-crystalline material in order to investigate the martensitic phase transformation. Incremental deformation experiments reveal a fully reversible martensitic transformation under torsional loading at room temperature, leading to excellent strain recovery after deformation to 6.5% shear strain. Furthermore, relevant aspects towards the analysis of powder diffraction data obtained for single-crystalline material in transmission mode under torsional loading are presented and critically discussed. |
| Databáze: |
Supplemental Index |
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