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首页> 外文期刊>Physical review >Hysteresis in a system driven by either generalized force or displacement variables: Martensitic phase transition in single-crystalline Cu-Zn-Al
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Hysteresis in a system driven by either generalized force or displacement variables: Martensitic phase transition in single-crystalline Cu-Zn-Al

机译：由广义力或位移变量驱动的系统中的磁滞：单晶Cu-Zn-Al中的马氏体相变

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摘要

We report on experiments aimed at comparing the hysteretic response of a Cu-Zn-Al single crystal undergoing a martensitic transition under strain-driven and stress-driven conditions. Strain-driven experiments were performed using a conventional tensile machine while a special device was designed to perform stress-driven experiments. Significant differences in the hysteresis loops were found. The strain-driven curves show reentrant behavior (yield point) which is not observed in the stress-driven case. The dissipated energy in the stress-driven curves is larger than in the strain-driven ones. Results from recently proposed models qualitatively agree with experiments.
机译：我们报道了旨在比较在应变驱动和应力驱动条件下经历马氏体转变的Cu-Zn-Al单晶的磁滞响应的实验。应变驱动的实验是使用传统的拉伸机进行的，而特殊设备则设计为进行应力驱动的实验。发现磁滞回线有显着差异。应变驱动曲线显示了凹入行为（屈服点），这在应力驱动情况下没有观察到。应力驱动曲线的耗散能量大于应变驱动曲线的耗散能量。最近提出的模型的结果在质量上与实验一致。

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