ISSN   1004-0595

CN  62-1095/O4

高级检索
铝合金微弧氧化陶瓷层在润滑条件下的抗磨性能研究[J]. 摩擦学学报, 2004, 24(3): 220-224.
引用本文: 铝合金微弧氧化陶瓷层在润滑条件下的抗磨性能研究[J]. 摩擦学学报, 2004, 24(3): 220-224.
Wear-Resistance of Microarc Oxidation Coating on Aluminum Alloy under Oil Lubrication[J]. TRIBOLOGY, 2004, 24(3): 220-224.
Citation: Wear-Resistance of Microarc Oxidation Coating on Aluminum Alloy under Oil Lubrication[J]. TRIBOLOGY, 2004, 24(3): 220-224.

铝合金微弧氧化陶瓷层在润滑条件下的抗磨性能研究

Wear-Resistance of Microarc Oxidation Coating on Aluminum Alloy under Oil Lubrication

  • 摘要: 采用模拟活塞-缸套运动形式的往复式滑动摩擦磨损试验机对比研究了铝合金微弧氧化陶瓷层、电镀硬铬镀层及耐磨磷钒铜铸铁的摩擦磨损特性;利用扫描电子显微镜观察分析了磨损表面形貌,进而探讨了油润滑条件下微弧氧化陶瓷层的磨损机制及其影响因素.结果表明:铝合金微弧氧化陶瓷层在油润滑条件下的耐磨性能显著优于电镀硬铬镀层和磷钒铜铸铁;陶瓷层中的微孔有利于改善其在油润滑条件下的耐磨性能;不同厚度的微弧氧化陶瓷层在稳定磨损阶段的磨损质量损失变化不大.

     

    Abstract: A reciprocal sliding friction and wear tester simulating the motion of piston-cylinder liner pair was performed to comparatively investigate the wear-resistance of microarc oxidation coating on aluminum alloy, Cr-plating coating, and wear-resisting P-V-Cu cast iron, by sliding against carburized and nitrided AISI-1045 steel under the lubrication of a two-stroke motorcycle machine oil. The morphologies of the original and worn surfaces of the microarc oxidation coating were observed on a scanning electron microscope. The morphologies of the worn surfaces of the Cr-plating coating and wear-resisting P-V-Cu cast iron were also observed on the same scanning electron microscope, and the wear mechanism and its affecting factors were accordingly discussed. As the results, the microarc oxidation coating showed much better wear-resistance than the Cr-plating coating and the P-V-Cu cast iron. This was attributed to the specials microstructures of the microarc oxidation coating. Namely, the micro-cavities in the microarc oxidation coating were able to entrap the lubricating oil and hence to reduce the friction and wear. Such a kind of the oil-entrapping capacity of the micro-cavities was remained after the friction and wear test, because the morphologies and structures of the micro-cavities remained almost unchanged thereafter. Moreover, though the microarc oxidation coatings of different thickness had different running-in period and running-in wear mass loss as well, they recorded a slight variation in the wear mass loss during the steady-state sliding process.

     

/

返回文章
返回