| 用晶粒尺寸评价纯净装甲钢抗冲击性能 |
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| 引用本文： | 李保成,张星,张治民.用晶粒尺寸评价纯净装甲钢抗冲击性能[J].弹箭与制导学报,2007,27(2):342-343,346. |
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| 作者姓名： | 李保成 张星 张治民 |
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| 作者单位： | 中北大学材料科学与工程学院,太原,030051 |
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| 摘 要： | 通过对冲击破坏装甲钢组织分析．发现纯净装甲钢在冲击载荷下破坏过程中是在晶界交汇处（三叉点）产生裂纹源．然后相互连接的结果。同时根据材料强度理论和动态强化规律推导出材料微观结构参数与冲击速度之间的关系。
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| 关 键 词： | 装甲钢 裂纹源 扩展 晶粒尺寸 |
| 收稿时间： | 2006-11-14 |
| 修稿时间： | 2006-11-142006-12-28 |
Evolution on Anti-impact Behavior of Amour Steel by the Grain Size |
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| LI Bao-cheng,ZHANG Xing,ZHANG Zhi-min.Evolution on Anti-impact Behavior of Amour Steel by the Grain Size[J].Journal of Projectiles Rockets Missiles and Guidance,2007,27(2):342-343,346. |
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| Authors: | LI Bao-cheng ZHANG Xing ZHANG Zhi-min |
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| Affiliation: | School of Materials Science and Engineering, North University of China. Taiyuan 030051. China |
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| Abstract: | The microstructure has been analyzed to the armor steel with attacks, it was discovered that the destruction of armored steel under the impact load is first produces the crack source in the crystal boundary intersection point, then connects mutually. Meanwhile. the relationship between the material microscopic structure parameter and the impact speed has been concluded according to the material strength theory and the dynamic strengthened rule. |
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| Keywords: | armor steel crack source expansion grain size |
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