| 工艺参数对HVOF喷涂WC-Co涂层磨损性能的影响 |
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| 引用本文： | 常维纯,宗少彬,李广群. 工艺参数对HVOF喷涂WC-Co涂层磨损性能的影响[J]. 材料开发与应用, 2006, 21(3): 30-33 |
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| 作者姓名： | 常维纯 宗少彬 李广群 |
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| 作者单位： | 中国石油管道公司科技中心,河北,廓坊,065000;中国石油管道防腐工程有限责任公司,河北,廓坊,065000;中国石油天然气管道工程有限公司,河北,廊坊,065000 |
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| 摘 要： | 采用滑动磨损试验机对不同工艺参数下HVOF喷涂WC-Co涂层进行滑动磨损试验,并分析了涂层的表面失效行为。氧气流量和燃气流量对涂层磨损性能的影响呈不同的变化规律,较小的氧气流量、适中的燃气流量和喷涂距离条件下制备的涂层磨损率较低。涂层滑动磨损失效具有解理断裂特征。失效过程中碳化物颗粒的剥落对涂层磨损起关键作用,涂层中的粘结相、孔隙对疲劳裂纹的扩展有很大的影响。
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| 关 键 词： | 超音速火焰喷涂 涂层 滑动磨损 耐磨性 |
| 文章编号： | 1003-1545(2006)03-0030-04 |
| 收稿时间： | 2005-11-15 |
| 修稿时间： | 2005-11-15 |
Influence of Spraying Parameter on Wear Performance of High Velocity Oxy-fuel Flame Spraying WC-Co Coats |
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| CHANG Wei-chun,ZHONG Chao-bing,LI Guong-qun. Influence of Spraying Parameter on Wear Performance of High Velocity Oxy-fuel Flame Spraying WC-Co Coats[J]. Development and Application of Materials, 2006, 21(3): 30-33 |
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| Authors: | CHANG Wei-chun ZHONG Chao-bing LI Guong-qun |
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| Abstract: | Sliding wear performances of WC-Co coats was investigated through sliding wear abrasive test. The result shows that spraying parameters such as flow rate of Oz and combusting gas C3H8 has influence on the wear weight loss of the coats. The failure of the coats in the process of sliding wear is characterized by cleavage crack. The peeling carbide particles is a dorminent fator to cause the wear of the coats in the course of failure. Binder phase,oxides and pores in the coats have a great influence on the extension of the crack. |
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| Keywords: | High velocity oxy-fuel flame spraying Coating Sliding wear Wear resistance |
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