Shape Memory Effect in Cu-Zn Alloy
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摘要: 通過扭轉法和電阻測量法對Cu-Zn合金的形狀記憶效應進行了實驗研究。發現在Ms點以上,不存在熱彈性馬氏體的情況下,由應力誘發馬氏體可以引起形狀記憶效應。另外,在Ms點以下有熱彈性馬氏體的情況下,根據實驗結果可以證明,應力誘發馬氏體在形狀記憶效應中仍然起主要作用。Abstract: The shape memory effect(SME) in Cu-Zn alloy was studied by the twisting deformation method and electric resistance methods. The results show that when the temperature above Ms, there is no thermoelastic mar tensite(TEM), but show perfect SME, so that the SME is entirely caused by stress-induced martensite (SIM). On the other hand, when the temperature below Ms, though there is TEM transformation, the SME is also mainly caused by the SIM.
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