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| 时效对激光熔覆Fe-Cu复合涂层的影响 | |
| 引用本文： | 蒲文刚,周芳,夏昌其. 时效对激光熔覆Fe-Cu复合涂层的影响[J]. 现代机械, 2009, 0(2): 84-85 |
| 作者姓名： | 蒲文刚 周芳 夏昌其 |
| 作者单位： | 贵州大学材料与冶金学院,贵州,贵阳,550003 |
| 基金项目： | 贵州省科学技术基金，夤州大学SRT项目 |
| 摘 要： | 采用金相显微镜、扫描电镜和X射线衍射仪分别对Fe-Cu激光熔覆涂层时效前后的组织和相结构进行分析,并利用显微硬度计测定了时效前后熔覆层的硬度分布。结果表明,Fe-Cu激光熔覆层为亚共晶组织,时效前后,其物相均由α-Fe、Cr23C6和Cr7C3组成,组织形貌并未改变。时效后从过饱和的α-Fe固溶体中析出了第二相,使涂层硬度得到提高。 |
| 关 键 词： | 时效 激光熔覆 显微组织 硬度 |
Effects of Aging on the Fe-Cu Composite Coating Cladded by Laser |
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| PU Wengang,ZHOU Fang,XIA Changqi. Effects of Aging on the Fe-Cu Composite Coating Cladded by Laser[J]. Modern Machinery, 2009, 0(2): 84-85 | |
| Authors: | PU Wengang ZHOU Fang XIA Changqi |
| Affiliation: | PU Wengang, ZHOU Fang, XIA Changqi |
| Abstract: | The microstructure and the phase of Fe-Cu composite coating which were as-cladded or as-aged were analyzed by using metallographic microscope, scanning electron microscopy and X-ray diffraction respectively, and the hardness of them were measured by microhardness tester. The results showed that the cladding coating of Fe-Cu was hypoeutectic structure, and the phase of coating as-cladded or asaged were composited of α- Fe,Cr23C6 and Cr7C3, the morphology structure was not changed. The second phase had precipitated from the supersaturated α- Fe solid solution after aging, and then the hardness of coating has been improved. |
| Keywords: | aging laser cladding microstructure hardness |
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