| 形变氮化20钢拉伸断口和冲击断口的分形研究 |
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| 引用本文： | 李江河,孟祥才,王轶农.形变氮化20钢拉伸断口和冲击断口的分形研究[J].佳木斯大学学报,1996(1). |
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| 作者姓名： | 李江河 孟祥才 王轶农 |
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| 作者单位： | 牡丹江建材机械总厂 |
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| 摘 要： | 本文利用垂直截面法测量了20钢经不同形变和氮化复合处理后拉伸和冲击断裂表面的分形维数．结果表明，材料的拉伸性能（σb、σs、δ）、冲击性能（Ak）和断口表面的分形维数DF均随形变量的增加而增加．冲击断口的分形维数DF与冲击功的对数1nAk之间呈正变化的线性关系．
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| 关 键 词： | 垂直截面法 分形维数 拉伸性能 冲击功 形变氮化 |
FRACTAL DIMENSION OF TENSILE AND IMPACT FRACTURED SURFACES OF FE-0.2C STEEL AFTER DEFOEM-NITRIDING |
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| Li Jianghe, Mang Xiangcai, Wang Yinong.FRACTAL DIMENSION OF TENSILE AND IMPACT FRACTURED SURFACES OF FE-0.2C STEEL AFTER DEFOEM-NITRIDING[J].Journal of Jiamusi University(Natural Science Edition),1996(1). |
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| Authors: | Li Jianghe Mang Xiangcai Wang Yinong |
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| Institution: | Li Jianghe; Mang Xiangcai; Wang Yinong(Mudanjiang Factory of Making Machine) (Jiamusi Institute of Technology) |
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| Abstract: | The fractal dimension of tesile and impact fractured surfaces of Fe-0.2C steel after deform-nitriding were measured by vertical section method. The resultshow that the larger the prior deformation degree the higher the tensile property (UTS,YS,EL), impact energy Ak and the fractal dimension of fractured surfaces. |
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| Keywords: | vertical section method fractal dimension tensile property impact energy deform-nitriding |
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