INTERNAL FRICTION MEASUREMENTS RELATED TO THE TWO WAY MEMORY EFFECT IN Cu-Zn-Al ALLOY EXHIBITING THERMOELASTIC MARTENSITIC TRANSFORMATION
نویسندگان
چکیده
The alloys vitL T~lernioelastic Martensicic Transfornation, like the Cu-Zn--el, exhibit, a£ ter a thermomechanical treatment named "training", The Two Way Shape Memory Effect. We have compared internal friction measurements versus amplitude for a "trained" and a "virgin" sample. Tie obtained results are coherent with the existence in the "trained" saruple of particular sets of dislocations. These dislocations generates orientated internal stresses, which favour particular martensite variants during the direct transformation.
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