| Q235钢表面氩弧熔覆Mo-Si复合涂层组织和性能分析 |
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| 引用本文： | 王永东,刘兴,朱艳,毛新宇.Q235钢表面氩弧熔覆Mo-Si复合涂层组织和性能分析[J].焊接学报,2009,30(5):42-44. |
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| 作者姓名： | 王永东 刘兴 朱艳 毛新宇 |
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| 作者单位： | 黑龙江科技学院,材料科学与工程学院,哈尔滨,150022 |
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| 基金项目： | 哈尔滨市青年科技创新基金，黑龙江省教育厅项目，科技学院引进人才项目 |
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| 摘 要： | 以钼粉、硅粉为原料,利用氩弧熔覆技术在Q235钢基材表面原位合成了FeMoSi/Fe3Si金属硅化物复合涂层,应用SEM,XRD对涂层的显微组织和物相进行了分析,并测试了涂层显微硬度和常温耐磨性.结果表明,复合涂层与基体界面无气孔、裂纹,呈冶金结合;复合材料涂层由α-Fe,初生相FeMoSi三元金属硅化物树枝晶和枝晶间的鱼骨状FeMoSi/Fe3Si共晶组织组成;涂层的显微硬度达到1 000 HVO.2,较基体提高3倍左右;相对耐磨性较基体Q235钢提高近11倍.
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| 关 键 词： | 氩弧熔覆 复合涂层 原位合成 耐磨性 |
| 收稿时间： | 2008/4/22 0:00:00 |
Analysis on property and microstructure of Mo-Si composite coating deposited by argon shielded arc on Q235 steel surface |
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| WANG Yongdong,LIU Xing,ZHU Yan and MAO Xinyu.Analysis on property and microstructure of Mo-Si composite coating deposited by argon shielded arc on Q235 steel surface[J].Transactions of The China Welding Institution,2009,30(5):42-44. |
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| Authors: | WANG Yongdong LIU Xing ZHU Yan and MAO Xinyu |
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| Affiliation: | Department of Material Science and Technology;Heilongjiang Institute of Science and Technology;Harbin 150022;China |
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| Abstract: | Metal-silicide composite coating of FeMoSi/Fei3Si was prepared by in situ synthesis on the surface of Q235 steel by means of argon arc cladding technique with the pre-alloyed powder of Mo and Si.The microstructure and phases of coating were investigated by scanning electron microscope(SEM) and X-ray diffraction(XRD),meanwhile the microhardness and the wear resistance of coating were tested.The results show that the interface between the coating and substrate has excellent bonding and is free of pores and cr... |
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| Keywords: | argon arc cladding composite coating situ synthesis wear resistance |
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