Abstract
The purpose of present study is to investigate the effect of heat treatment conditions on mechanical properties of Cu-Al-Mn shape memory alloy. The Cu-17mol%Al-l lmol%Mn wire with a 1.8mm in diameter is used. The heat treatment condition is 900℃ for 10 minute and then aged 100℃ for 15 minute (1 time or 2 times). The transformation temperatures were measured by differential scanning calorimetly (DSC). The mechanical properties were measured by tensile machine at 25℃. The property of bending fatigue life is measured by bending fatigue tester. The results in present study are as follows: (1) Both aging condition specimens were shown super elasticity. (2) The average of fatigue life is about 3000 times at 2% strain (gained 1 time) and about 5000 times (aged 2 times), respectively.
