| WC/Ni60激光熔覆复合涂层的强碱腐蚀磨损行为 |
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| 引用本文： | 张三川. WC/Ni60激光熔覆复合涂层的强碱腐蚀磨损行为[J]. 光电子．激光, 2010, 0(11): 1663-1667 |
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| 作者姓名： | 张三川 |
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| 作者单位： | 郑州大学机械工程学院; |
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| 基金项目： | 河南省科技攻关资助项目(0424270084); 郑州市科技攻关资助项目(074SCCG106-5) |
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| 摘 要： | 利用激光熔覆制备WC增强涂层,通过光学显微镜(OM)、电子扫描显微镜(SEM)和EDS对试样观察和分析,并依据颗粒相分布均匀性,获得推荐优化工艺参数是送粉量为7.8g/min、扫描速度为4mm/s、激光功率为2.0kW和离焦量为50mm。在此基础上,应用M-200摩擦磨损试验机考察了WC/Ni60涂层在40% NaOH强碱溶液作用下的摩擦磨损行为,结果表明,涂层的摩擦磨损机制随工况的变化而变化,钝化膜的生成和溶解成为一个动态过程,且所制备的涂层在中速中载时较干摩擦能够显著降低摩擦因数和磨损量。
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| 关 键 词： | 激光技术 激光熔覆 腐蚀磨损 复合涂层 强碱溶液 |
Corrosive wear behavior in the strong alkaline solution for the WC/Ni60 composite coating by laser cladding |
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| ZHANG San-chuan. Corrosive wear behavior in the strong alkaline solution for the WC/Ni60 composite coating by laser cladding[J]. Journal of Optoelectronics·laser, 2010, 0(11): 1663-1667 |
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| Authors: | ZHANG San-chuan |
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| Affiliation: | ZHANG San-chuan,Li Xia,ZHANG Jing(College of Mechanical Engineering,Zhengzhou University,Zhengzhou 450001,China) |
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| Abstract: | The WC/Ni60 coatings are manufactured by laser cladding.The optical microscope(OM), scanning electronic microscope(SEM) and energy-dispersive spectrometer(EDS) are applied to analyze microstructures and element component of particle phase surface, and according to distribution state of particle phase, a set of optimum technological parameters are obtained: 7.8 g/min of powder feeding rate, 4 mm/s of laser beam scan velocity, 2 kW of laser power and 50 mm of defocusing amount.The M-200 abrasive tester is use... |
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| Keywords: | laser technique laser cladding corrosive wear composite coating strong alkaline solution |
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