| 等离子喷涂Al2O3-TiO2涂层的干摩擦磨损特性 |
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| 引用本文： | 肖卫东,;赵永武,;尚勇军,;刘智渭,;董远宝.等离子喷涂Al2O3-TiO2涂层的干摩擦磨损特性[J].江南学院学报,2009(1):76-80. |
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| 作者姓名： | 肖卫东 ;赵永武 ;尚勇军 ;刘智渭 ;董远宝 |
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| 作者单位： | [1]江南大学机械工程学院,江苏无锡214122; [2]无锡压缩机股份有限公司,江苏无锡214026 |
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| 基金项目： | 江苏省自然科学基金项目（BK2004020）;教育部重点项目（教外字[20061233号）;教育部回国人员启动基金项目（教外字留[2004]527号）;无锡市产学研项目（DY050007）;清华大学摩擦学国家重点实验室开放基金项目（SKLT04-06）;江南大学重大基金项目（207000-21054200）. |
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| 摘 要： | 利用等离子喷涂方法制备了Al2O3-TiO2涂层,测定了涂层的显微硬度和表观气孔率,并对涂层与GCr15钢配副,在不同P-V值及无润滑情况下进行了球-盘式摩擦磨损试验。试验结果表明：Al2O3-TiO2（w（TiO2）=13%）涂层在低速低载条件下具有显著的减摩抗磨性能;Al2O3-TiO2（w（TiO2）=20%）和Al2O3-TiO2（w（TiO2）=40%）涂层在高压力、转速工况下,具有优良的干摩擦特性。研究结果为实际生产选择涂层提供了依据。
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| 关 键 词： | 等离子喷涂 干摩擦磨损 Al2O3-TiO2涂层 磨损机理 |
Research on Tribological Properties of Al2O3-TiO2 Coatings under Dry-Lubrication |
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| Institution: | XIAO Wei-dong, ZHAO Yong-wu, SHANG Yong-jun, LIU Zhi-wei, DONG Yuan-bao (1. School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China; 2. Wuxi Compressor CO. Ttd, Wuxi 214026, China) |
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| Abstract: | Al2O3-TiO2 coatings are formed by plasma spray technology. The friction and wear properties of Al2O3-TiO2 coatings against GCr15 steels are investigated with a ball-on-disc tribometer under a dry-lubrication condition. Furthermore, the microhardness and surface porosity of coatings were determined. The experimental results indicate that as the speed and weight are low, Al2O3-TiO2 （w（TiO2） = 13% ） coating shows good performances of anti-friction and anti-wear. However, Al2O3-TIO2 （w（TiO2） = 20% ） and Al2O3-TiO2 （w（TiO2） = 40% ） coatings show better dry-friction properties under higher values of pressure-velocity. The results and analysis may offer some guidance for the choice of coatings. |
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| Keywords: | plasma spray dry friction and wear Al2O3-TiO2 coatings wear mechanism |
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