| 铝-0.5wt%铜合金在低内耗时的反常振幅效应 |
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| 引用本文： | 张进修,潘正良,葛庭燧.铝-0.5wt%铜合金在低内耗时的反常振幅效应[J].物理学报,1983,32(4):530-533. |
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| 作者姓名： | 张进修 潘正良 葛庭燧 |
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| 作者单位： | (1)中国科学院固体物理研究所; (2)中国科学院金属研究所; (3)中山大学物理系 |
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| 摘 要： | 用计算机控制的自动倒扭摆测量了轻度冷加工的铝-0.5wt%铜合金试样在室温(20℃)时效24小时后的自由衰减曲线。此时的内耗值虽然很低,但在逐次增加激发振幅进行内耗测量时也观察到一系列的振幅内耗峰。
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| 收稿时间： | 7/2/1982 12:00:00 AM |
ANOMALOUS AMPLITUDE-DEPENDENCE EFFECT OBSERVED IN Al-0.5wt% Cu ALLOY WHEN THE INTERNAL FRICTION IS EXTREMELY LOW |
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| Zhang Jin-xiu,Pan Zheng liang and Ge Ting-sui.ANOMALOUS AMPLITUDE-DEPENDENCE EFFECT OBSERVED IN Al-0.5wt% Cu ALLOY WHEN THE INTERNAL FRICTION IS EXTREMELY LOW[J].Acta Physica Sinica,1983,32(4):530-533. |
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| Authors: | Zhang Jin-xiu Pan Zheng liang and Ge Ting-sui |
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| Abstract: | Free decay curves of slightly cold-worked Al-0.5 wt% Cu specimen aged at room temperature (20℃) for 24 hrs were determined by an automatic inverted torsion pendulum with computer control. A series of amplitude internal friction peaks were observed as the excitation amplitude was increased succestively even when the internal friction was very low. |
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