| 球墨铸铁激光表面熔覆的组织和性能 |
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| 引用本文： | 郭作兴,王红颖,李玉龙,胡建东. 球墨铸铁激光表面熔覆的组织和性能[J]. 吉林大学学报(工学版), 1995, 0(1) |
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| 作者姓名： | 郭作兴 王红颖 李玉龙 胡建东 |
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| 摘 要： | 采用２ｋＷＣＯ２激光器对球墨铸铁进行镍基粉末表面熔覆合金化处理。研究结果表明：在熔层中存在ＡｌＮｉ，Ａｌ３Ｎｉ．ＮｉＣｒＦｅ等新相；熔层显微硬度高于基体材料；熔覆后材料的耐蚀性提高；随着扫描速度的增大，组织形貌由粗大的树枝晶变为细小的等轴晶。
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| 关 键 词： | 激光，铸铁，金属表面熔覆 |
Microstructure and Properties of Global Graphite Cast Iron Coated by Laser |
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| Guo Zuoxing,Wang Hongying,Li Yulong,Hu Jiandong. Microstructure and Properties of Global Graphite Cast Iron Coated by Laser[J]. Journal of Jilin University:Eng and Technol Ed, 1995, 0(1) |
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| Authors: | Guo Zuoxing Wang Hongying Li Yulong Hu Jiandong |
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| Affiliation: | Department of Metallic Muterias Engineering |
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| Abstract: | A CO2 laser is used to coat the surface of the cast iron with nickel matrix alloy powder.The research demonstrates that the laser coated layer-consists of such novel phases as AlNi,Al3Ni and NiCrFe.The microhardness of the laser coated layer is higher than that of substrate.Wear-resistance of the laser coated layer is enhanced.Microstructure becomes finer with increasing scanning rate. |
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| Keywords: | laser cast iron coating |
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