| HVAF制备WC?12Co涂层的空蚀和磨损性能研究 |
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| 引用本文： | 王国刚,孙冬柏,樊自拴,孟惠民,俞宏英,马 光,徐 杰.HVAF制备WC?12Co涂层的空蚀和磨损性能研究[J].中国表面工程,2006,19(4):21-24. |
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| 作者姓名： | 王国刚 孙冬柏 樊自拴 孟惠民 俞宏英 马 光 徐 杰 |
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| 作者单位： | 北京科技大学,腐蚀防护中心,北京,100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划);北京市科技计划 |
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| 摘 要： | 采用国际上最新的活性燃烧高速燃气喷涂（AC-HVAF）技术制备出WC-12Co金属陶瓷涂层。涂层的X射线衍射检测表明，涂层制备过程中未出现WC粒子的氧化和脱碳现象，涂层相结构基本保持了喂料粉末状态；对制备涂层进行的旋转圆盘空蚀试验表明，WC-12Co硬质涂层抗泥沙磨损性能出色，磨损量仅为不锈钢的1／10；其耐空蚀性能则相反，不及对比0Cr13Ni5Mo不锈钢；对涂层的空蚀破坏机理做了分析，对沙粒磨损损伤特点做了初步探讨。
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| 关 键 词： | 空蚀 磨损 水轮机 |
| 文章编号： | 1007-9289（2006）04-0020-04 |
| 收稿时间： | 2006-04-12 |
| 修稿时间： | 2006-04-122006-04-28 |
The Cavitation Behavior and Slurry Wear Resistance of WC-12Co Cermets Coatings Sprayed by AC?HVAF Technology |
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| WANG Guo-gang,SUN Dong-bai,FAN Zi-shuan,YU Hong-ying,MENG Hui-ming,MA Guang,XU Jie.The Cavitation Behavior and Slurry Wear Resistance of WC-12Co Cermets Coatings Sprayed by AC?HVAF Technology[J].China Surface Engineering,2006,19(4):21-24. |
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| Authors: | WANG Guo-gang SUN Dong-bai FAN Zi-shuan YU Hong-ying MENG Hui-ming MA Guang XU Jie |
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| Affiliation: | The School of Materials Science and Engineering, University of Science and Technology Beijing 10008 |
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| Abstract: | The WC-12 Co cermet coating was deposited by means of the newly developed in the world active combustion-high velocity air fuel (AC?HVAF) Technology. The X?Ray diffraction was employed to identify the chemical composition of the feedstock powder, as?sprayed and heat- treatment coatings. The patterns indicated that the chemical composition kept similarly, without W2C peak. The cavitation erosion and slurry erosion tests were carried out with the rotating disc equipment, the results showed that the WC?12Co coatings exhibited excellent slurry wear resistance than the sample made of 0Cr13Ni5Mo stainless steel. At last the mechanism of cavitation damage was discussed. |
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| Keywords: | HVAF WC-12Co |
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