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Evaluation of the microstructure and phase transition temperatures of the Cu-9%Al-8%Mn shape memory alloy

Shape memory alloys (SMAs) belong to the group of advanced functional materials for numerous technical applications. Among many known Cu- based shape memory alloys, Cu–Al–Mn ternary alloys are characterized by a combination of good shape memory properties and excellent ductility which makes them commercially attractive. In this work the Cu-9%Al-8%Mn alloy was prepared by induction melting of pure metals. Microstructure of the alloy was investigated in the as-prepared state, after homogenization annealing at 850 °C and slow cooling, and after quenching from 850 °C using SEM-EDS technique. Transformation temperatures of the quenched alloy were investigated using DSC technique.

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

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