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首页> 外文期刊>Applied Surface Science >Fretting wear behaviour of microarc oxidation coatings formed on titanium alloy against steel in unlubrication and oil lubrication
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Fretting wear behaviour of microarc oxidation coatings formed on titanium alloy against steel in unlubrication and oil lubrication

机译：钛合金表面微弧氧化涂层在不润滑和油润滑下对钢的微动磨损行为

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Ceramic coatings were formed on Ti6Al4V alloy surface by microarc oxidation (MAO) in a NazSiO(3) system solution. Unlubricated, smear oil and oil bath lubricated fretting tests were performed on MAO coatings against 52100 steel on a fretting wear tester. Microstructural investigation of the worn surfaces was performed and the wear mechanisms were studied. The results show that the coatings are mainly composed of rutile and a small amount of anatase TiO2, both in nano grain structure. Friction coefficient of microarc oxidation coatings under oil bath lubrication was significantly reduced, favorable stable at 0.15, which indicates that the coatings with oil lubricated lowered the shear and adhesive stresses between contact surfaces, consequently alleviating the possibility of initiation and propagation of cracks in the inner layer of the coating or titanium alloy substrate. (c) 2005 Elsevier B.V. All rights reserved.
机译：通过在NazSiO（3）系统溶液中的微弧氧化（MAO），在Ti6Al4V合金表面上形成陶瓷涂层。在微动磨损测试仪上针对52100钢对MAO涂层进行了未润滑，涂抹油和油浴润滑的微动测试。进行了磨损表面的微观结构研究，并研究了磨损机理。结果表明，该涂层主要由金红石型和少量的锐钛矿型TiO2组成，均为纳米晶粒结构。微弧氧化涂层在油浴润滑下的摩擦系数显着降低，在0.15时具有良好的稳定性，这表明用油润滑的涂层降低了接触表面之间的剪切应力和粘附应力，从而减轻了内部裂纹产生和扩展的可能性。涂层或钛合金基材的涂层。 （c）2005 Elsevier B.V.保留所有权利。

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