| 形状记忆材料中二类相界面的研究 |
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| 引用本文： | 林光明 黄清珠. 形状记忆材料中二类相界面的研究[J]. 中山大学学报(自然科学版), 1993, 32(3): 29-34 |
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| 作者姓名： | 林光明 黄清珠 |
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| 作者单位： | 中山大学物理学系(林光明，黄元士，张进修)，中山大学测试中心(黄清珠) |
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| 摘 要： |
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| 关 键 词： | 形状记忆合金 相界面 形状记忆材料 |
Study of Two Types of Interface in Shape Memory Materials |
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| Lin Guangming Huang Yuanshi Zhang Jinxiu Huang Qinzhu. Study of Two Types of Interface in Shape Memory Materials[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 1993, 32(3): 29-34 |
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| Authors: | Lin Guangming Huang Yuanshi Zhang Jinxiu Huang Qinzhu |
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| Affiliation: | Lin Guangming Huang Yuanshi Zhang Jinxiu Huang Qinzhu Department of Physics,Zhongshan University |
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| Abstract: | In shape memory alloys exhibiting two-way shape memory effect(TWSM),the martensitic variants(or phase interface)may be classified into pref-erred orientational variant and accommodating variant.Measurements of electricalresistivity,memory recovery strain and in-situ X-ray diffraotion show that theTWSM is caused only by the motion of orientated variants and the transformationtemperature of the orientated variant are higher than those of the accommodatingvariant.The proportion of the two types of variant depends on the alloy species,training process etc.For the Cu-Zn-Al memory alloy used in our investigation,the volume fraction of the preferred orientational variant is about 65%.Appliedstress may promote or restrain the motion of orientated interface,thereby affectingthe shape recovery temperature,but the stress has no significant effect on the motionof the accommodating interfaces. |
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| Keywords: | shape memory alloy martensitic variant phase interface constrained heating |
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