The Effect of Annealing Temperature and Quenching Media Variations On Heat Treatment Process of Cu-Zn-Al Shape Memory Alloys For Shape Memory Effect and Microstructure

Shape Memory Alloys (SMA) is a material that can return to its original shape after undergoing mechanical deformation. The most commonly SMA used the Ni-Ti alloy. However, it high cost. So necessary have alternative materials, for instance Cu-Zn-Al. Several studies related Cu-Zn-Al poor properties. there further research required in order determine heat treatment process of Alloys. In this study Cu-21Zn-5Al alloys were given with annealing temperature variations (425;550;600°C) and cooling media (brine, dry ice). Annealing affects properties microstructure test material. Cooling results rate during solution treatment. Tests include hardness test, metallographic XRD DSC SME test. From results, was found all variables Effect. variable had greatest recovery (38.3%) 450°C using brine. addition, rapid occurs brine media.