| 激光冲击对球墨铸铁表面性能的影响 |
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| 引用本文： | 周建忠,张永康,杨继昌,於自岚.激光冲击对球墨铸铁表面性能的影响[J].应用激光,2001,21(2):91-94. |
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| 作者姓名： | 周建忠 张永康 杨继昌 於自岚 |
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| 作者单位： | 江苏理工大学机械工程学院 |
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| 基金项目： | 江苏省应用基金资助项目(BJ98011) |
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| 摘 要： | 应用人工神经网络理论，合理选择激光冲击参数，对球墨铸铁QT450-10进行了激光冲击试验，并用扫描电镜和数显硬度仪等进行了分析。结果表明激光冲击使球墨铸铁的表面性能得到明显改善，冲击区表面的平均硬度随冲击次数(1～4)的增加分别增加了34.56％～53.02％，硬化层深约为0.31mm～l47mm。
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| 关 键 词： | 激光冲击 球墨铸铁 显微硬度 塑性变形 |
| 修稿时间： | 2000年10月10 |
Effects of Laser Shocking on the Surface Properties of Ductile Iron |
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| Zhou Jianzhong,Zhang Yongkang,Yang Jichang,Yu Zilan.Effects of Laser Shocking on the Surface Properties of Ductile Iron[J].Applied Laser,2001,21(2):91-94. |
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| Authors: | Zhou Jianzhong Zhang Yongkang Yang Jichang Yu Zilan |
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| Abstract: | Selecting laser shocking parameters with the application of artificial neural networks theory,the high power density, neodymium -glass laser is used to laser shock process ductile iron QT450 - 10. The microhardness was measured and the microstructure of LSP area were examined with scanning electron microscope (SEM). The results show that the surface properties of ductile iron QT450 - 10 are improved remarkably after LSP treating. The average microhardness of the LSP area is increased by 34. 56～53.02 percent with the increasing of laser shock times (1～4),and the depth of hardened layer is about 0. 31～1.47mm |
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| Keywords: | laser shock processing (LSP) ductile iron microhardness plastic distortion |
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