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Evaluation of microstructure and transformation temperatures of the Cu-Al-Mn shape memory alloys

Four ternary Cu-Al-Mn shape memory alloys with 10.0-13.4 wt.% of aluminium and 3.6-7.8 wt.% of manganese were prepared by arc melting. Microstructures of the bulk alloys were investigated in the as-prepared state and after homogenization annealing at 850 °C followed by slow cooling using SEM-EDS technique. Transformation temperatures of the investigated alloys were analyzed using DSC technique. The results of present study represent contribution to the better understanding of the properties of investigated alloys in different thermal conditions.

Shape memory alloy, Cu-Al-Mn alloy, Microstructure, Martensitic transformation

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