CuAlMn Şekil Hafızalı Alaşımların Yaşlandırılmasının Mikroyapı ve Termal Özelliklerine Etkileri

Bakır bazlı şekil hafızalı alaşımların kullanımı hızla gelişmektedir. Bu çalışmamızda, CuAlMn şekil hafızalı alaşımının yaşlandırma etkileri incelenmiştir. Çalışmalarda 3 farklı alaşım üretilmiştir. Daha sonra bu alaşımlar 200 °C, 300 °C, 400 °C ve 500 °C sıcaklıklarda bir saat yaşlandırılmıştır. Yaşlandırma yapılmamış ve farklı sıcaklıklarda yaşlandırılmış numunelerin DSC, XRD ve mikro yapı incelemeleri yapılmıştır. Deneyler sonucunda yüksek sıcaklıklarda yaşlandırma işleminin alaşımlar üzerinde şekil hafıza etkisine olumsuz etki ettiği görülmüştür.

Effects of Aging Temperature on Microstructure and Thermal Properties of CuAlMn Shape Memory Alloys

The use of copper-based shape memory alloys is increasing rapidly. In this study, the aging effects of CuAlMn shape memory alloys were investigated. Three different alloys were produced during the work. These alloys were then aged for one hour at temperatures of 200 ° C, 300 ° C, 400 ° C and 500 ° C. DSC, XRD and microstructural investigations were carried out on samples which were not aged and aged at different temperatures. Experiments have shown that aging at high temperatures has an adverse effect on shape memory effect on alloys.

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