Investigation of Fe content in Cu–Al–Ni Shape Memory Alloys
- 31 Downloads
Polycrystalline Cu–Al–Ni–Fe-based shape memory alloys with different chemical composition were produced in an arc-melting furnace under an argon atmosphere. Homogenized and aged specimens were prepared for multiple analyses. The temperatures of reversible martensitic transformations, namely As, Af, Ms, Mf, Amax and ΔH enthalpy values were determined by a DSC device. The phase transition analysis from the room temperature to 850°C was undertaken by DTA. To characterize the lattice structure, an XRD analysis was conducted, the results of which were confirmed by microstructure images obtained from optical microscope observations.
KeywordsCu–Al–Mn–Fe DSC XRD DTA shape memory alloys
Unable to display preview. Download preview PDF.
- 20.T. W. Duerig, K. Melton, and D. Stöckel, Engineering Aspects of Shape Memory Alloys (Butterworth-Heinemann, 2013).Google Scholar
- 22.M. Gojic, S. Kozuh, I. Anzel, G. Lojen, I. Ivanic, and B. Kosec, “Microstructural and phase analysis of CuAlNi shape-memory alloy after continuous casting,” Mater. Tehnol. 47, 149–152 (2013).Google Scholar
- 23.K. Aldas and I. Ozkul, “Determination of the transformation temperatures of aged and low manganese rated Cu–Al–Mn shape memory alloys,” J. Balkan. Tribol. Assoc. 22, 56–65 (2016).Google Scholar