| LY12-M铝中冲击波衰减机理的实验研究 |
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| 引用本文： | 汤文辉,张若棋,陈雪芳.LY12-M铝中冲击波衰减机理的实验研究[J].高压物理学报,1988,2(3). |
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| 作者姓名： | 汤文辉 张若棋 陈雪芳 |
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| 作者单位： | 国防科技大学应用物理系
(汤文辉，张若棋)，国防科技大学应用物理系(陈雪芳) |
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| 摘 要： | 应用锰铜压阻计测量了峰压为4.92 GPa的平面冲击波在LY12-M铝中的衰减规律，对试样进行了正电子寿命谱探测和维氏显微硬度测试，分析了位错等缺陷对冲击波非流体动力学衰减的影响，同时还对LY12-M铝的冲击硬化效应进行了探讨。
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| 关 键 词： | 冲击波 冲击硬化 正电子湮没 位错 |
| 收稿时间： | 1988-04-13; |
EXPERIMENTAL STUDIES ON THE ATTENUATION OF SHOCK WAVES IN LY12-M ALUMINUM |
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| Tang Wenhui Zhang Ruoqi Chen Xuefang.EXPERIMENTAL STUDIES ON THE ATTENUATION OF SHOCK WAVES IN LY12-M ALUMINUM[J].Chinese Journal of High Pressure Physics,1988,2(3). |
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| Authors: | Tang Wenhui Zhang Ruoqi Chen Xuefang |
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| Affiliation: | Department of applied physics. National University of Defence Technology. Changsha |
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| Abstract: | The attenuation of planar shock waves in LY12-M aluminum was measured with the manganin piezoresistive gages. The peak pressure of shock waves initially is 4. 92 GPa. Both the positron lifetimes and the vickers microhardness were measured. The influences of dislocations and other crystal defects on the nonhydrodynamic attenuation of shock waves as well as the shock hardening effect in LY12-M aluminum are discussed. |
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| Keywords: | shock wave shock hardening positron annihilation dislocation |
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