Preliminary investigations on the constitutive response of a Cu-13.3%Al-4%Ni (wt%) shape memory alloy single crystal with stress-free transformation temperatures around 100 to 150°C are reported. Room temperature stress cycling tests were carried out at very low deformation rates. Reproducible stress/strain curves of up to 9% strain due to detwinning (martensitematensite phase transformations) with no plastic deformation were obtained. The data also indicated that a period of stress cycling is required to stabilize the material before reproducible stress-strain curves are obtained due to martensite reorientation.
Preliminary Investigations of a High Temperature Cu-13.3%Al-4%Ni Shape Memory Alloy Single Crystal
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Trigwell, S, Kumara K., G, Bhattacharyya, A, & Qidwai, MA. "Preliminary Investigations of a High Temperature Cu-13.3%Al-4%Ni Shape Memory Alloy Single Crystal." Proceedings of the ASME 2003 International Mechanical Engineering Congress and Exposition. Applied Mechanics and Biomedical Technology. Washington, DC, USA. November 15–21, 2003. pp. 67-73. ASME. https://doi.org/10.1115/IMECE2003-42904
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