| 模拟雷电流冲击金属材料的金相组织分析 |
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| 引用本文： | 李家启,陈宏,曾理,李良福,覃彬全,林涛. 模拟雷电流冲击金属材料的金相组织分析[J]. 气象科技, 2012, 40(5): 834-838 |
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| 作者姓名： | 李家启 陈宏 曾理 李良福 覃彬全 林涛 |
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| 作者单位： | 1. 重庆市气象局,重庆401147;南京信息工程大学应用气象学院,南京210044
2. 重庆市气象局,重庆,401147 |
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| 基金项目： | 国家标准“桥梁工程防雷技术规范”制修订计划项目资助 |
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| 摘 要： | 金相组织分析是雷电灾害鉴定的重要方法之一.通过模拟雷电流冲击的不同金属材料试验,并对其冲击材料进行金相组织分析,重点从材料微观结构变化研究雷电流对金属材料的影响.结果表明:模拟雷电流冲击后的金属材料其金相组织结构发生明显变化(缺陷增多)；不同金属材料冲击后内部金相组织结构变化有明显差异；相同材质的金属材料冲击后,其金相组织结构变化幅度与其截面积大小成反比.
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| 关 键 词： | 模拟 雷电流 冲击 金相组织 |
| 收稿时间： | 2011-02-11 |
| 修稿时间： | 2011-07-29 |
Metallographic Structure Analysis of Metal Materials Impacted by Simulated Lightning Current |
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| Li Jiaqi,Chen Hong,Zeng Li,Li Liangfu,Qin Bingquan and Lin Tao. Metallographic Structure Analysis of Metal Materials Impacted by Simulated Lightning Current[J]. Meteorological Science and Technology, 2012, 40(5): 834-838 |
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| Authors: | Li Jiaqi Chen Hong Zeng Li Li Liangfu Qin Bingquan Lin Tao |
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| Affiliation: | 1. Chongqing Meteorological Service, Chongqing 401147; 2. Nanjing University of Information Science ＆ Technology, Nanjing 210044) |
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| Abstract: | The analysis of metallographic structure is one of the important methods for lightning disaster investigation. The metallographic structure analysis is made of different metal materials that had been impacted by simulate lightning currents, with emphasis on the influence of lightning current impulses on the metal materials through changing microstructure. The results show that the metallographic structure of the metal materials changed obviously after impacted by simulated lightning currents. The metallographic structure changes for different metal material are different obviously. For the same metal material impacted by lightning currents, the amplitude of metallographic structure change is in inverse proportion to the sectional area. |
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| Keywords: | simulation lightning current impulse metallographic structure |
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