| 等离子喷涂纳米和微米Al_2O_3-TiO_2涂层摩擦磨损性能研究 |
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| 引用本文： | 卢林,马壮,王富耻,柳彦博.等离子喷涂纳米和微米Al_2O_3-TiO_2涂层摩擦磨损性能研究[J].北京理工大学学报,2010,30(7):878-882. |
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| 作者姓名： | 卢林 马壮 王富耻 柳彦博 |
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| 作者单位： | 北京理工大学,材料学院,北京,100081;北京理工大学,材料学院,北京,100081;北京理工大学,材料学院,北京,100081;北京理工大学,材料学院,北京,100081 |
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| 摘 要： | 采用大气等离子喷涂的方法制备了纳米和微米Al2O3-TiO2涂层,其中w(TiO2)=13%.分析了涂层组织形貌特征和结合强度等性能,研究了两种涂层在不同载荷下的摩擦磨损性能.结果表明,纳米Al2O3-TiO2涂层是由未熔或半熔纳米颗粒区域与完全熔融粒子铺展区域共同构成的,孔隙率低,显微硬度、结合强度均高于层状结构的微米涂层,且纳米涂层磨损量明显小于微米涂层.高载荷下磨屑均匀细化、圆整,形成微滚珠效应,纳米涂层稳态摩擦系数随载荷增大而下降,而微米涂层摩擦系数随载荷变化不明显.
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| 关 键 词： | 等离子喷涂 纳米Al2O3-TiO2涂层 摩擦系数 磨损量 |
| 收稿时间： | 2009/11/12 0:00:00 |
Friction and Wear Behaviors of Nano and Microscale-Structured Al2O3-TiO2 Coatings |
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| LU Lin,MA Zhuang,WANG Fu-chi and LIU Yan-bo.Friction and Wear Behaviors of Nano and Microscale-Structured Al2O3-TiO2 Coatings[J].Journal of Beijing Institute of Technology(Natural Science Edition),2010,30(7):878-882. |
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| Authors: | LU Lin MA Zhuang WANG Fu-chi and LIU Yan-bo |
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| Institution: | LU Lin,MA Zhuang,WANG Fu-chi,LIU Yan-bo(School of Material Science and Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | Nano-structured and microscale-structured Al2O3-TiO2 coatings were prepared by air plasma spraying(APS).The friction and wear behaviors of the two coatings at different loads were investigated with SRV friction and wear testing machinery.The micro structure,the porosity,the micro-hardness and bonding strength of the coatings were investigated as well.The wear mechanism was studied from the morphology of triturate.Results show that the microstructure of the nano-structured Al2O3-TiO2 coatings consist of two ... |
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| Keywords: | plasma spray nano-structured Al2O3-TiO2 coating friction coefficient triturate |
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