Abstract
This work concerns the structural characterization of Cu -13.58% Al- 3.94% Ni (wt. %) shape memory alloy elaborated by fusion using various techniques such as microscopy (OM and SEM), dilatometry and diffractometry (XRD). A particular attention is lent to the thermo elastic transformation may occur depending on the content of alloying and heat treatments' adopted. In this context, measurements of transformation temperatures were carried out. The microscopy is used for the characterization of alloy after different heat treatments adopted taking into account also the chemical composition. X-rays diffraction is used in order to access information on the different phases obtained and identify some types of martensite formed after quenching of alloy. The transformation temperatures are measured by the dilatometric analysis technique. This allows studying the structural evolution that occurs during heating and cooling of the alloy studied.
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