| 钨合金动态拉伸断口的分形维数 |
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| 引用本文： | 唐长国,朱金华.钨合金动态拉伸断口的分形维数[J].兵器材料科学与工程,1994,17(4):53-57. |
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| 作者姓名： | 唐长国 朱金华 |
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| 作者单位： | 西安交通大学，西安交通大学材料系 |
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| 摘 要： | 用ＧＹＣ－５０冲击拉伸试验机对粉末冶金钨合金进行不同加载速率的动态拉伸实验，用二次电子法测量动态拉伸试样断口的分形维数，发现分形维数值与动态拉伸断裂能之间有良好的线性关系。
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| 关 键 词： | 分形维数，动态拉伸断裂能，二次电子法 |
FRACTAL STUDY OF DYNAMIC TENSION FRACTURE FOR PM TUNGSTEN ALLOY |
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| Tang Changguo.FRACTAL STUDY OF DYNAMIC TENSION FRACTURE FOR PM TUNGSTEN ALLOY[J].Ordnance Material Science and Engineering,1994,17(4):53-57. |
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| Authors: | Tang Changguo |
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| Abstract: | Dynamic tension tests of powder metallurgy(PM)tungsten alloy were carried out on the GYC-50 impact testing machine. The secondary electron method was used to determine the fractal dimension of fracture surface.It was found the fractal dimension correlates well with dynamic tension fracture energy,and the fracture surface energy is 50.5J/m￣2 calculated from the correlation. |
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| Keywords: | fractal dimension dynamic tension fracture energy secondary electron method fracture surface energy |
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