凹坑深度对铝合金表面在不同润滑介质中摩擦学性能的影响

发布时间：2018-01-15 23:31

本文关键词：凹坑深度对铝合金表面在不同润滑介质中摩擦学性能的影响　出处：《金属学报》2017年04期 　论文类型：期刊论文

更多相关文章： 铝合金 凹坑 双疏表面 润滑 摩擦学性能

【摘要】：采用激光刻蚀技术在5083船用铝合金表面分别构建出深度为15和30 mm的圆台形凹坑织构,利用涂覆SiO_2和低表面能修饰改变表面润湿性,制备超疏水且疏油的双疏表面。采用HSR-2M高速往复摩擦试验机测试其在水、海水和油介质中的摩擦学性能。结果表明,凹坑深度为30 mm的表面的双疏性能强于凹坑深度15 mm的表面,摩擦学性能也更优。与单纯的织构表面相比,将织构和化学组分相结合的双疏表面可以更加显著地提高摩擦学性能。双疏表面在油介质中的摩擦系数和磨损量最小,在海水中的摩擦系数小于在水中,磨损量大于在水中。仿真计算结果表明,随着圆台形凹坑深度的增大,润滑膜承载力先增大后减小。当凹坑深度为75 mm时润滑膜承载力最大。研究结果表明,双疏表面可以显著提高铝合金在润滑介质中的摩擦学性能。
[Abstract]:The results show that the friction coefficient and wear quantity of the double hydrophobic surface in the oil medium are smaller than that in the water . The results show that the friction coefficient and the wear quantity of the double hydrophobic surface in the oil medium are better than that in the water . The results show that the friction coefficient and the wear quantity of the double hydrophobic surface in the oil medium are smaller than in the water . The results show that the friction coefficient and the wear quantity of the double hydrophobic surface in the oil medium are smaller than in the water .

【作者单位】：大连海事大学交通运输装备与海洋工程学院;
【基金】：国家自然科学基金项目Nos.51275064和50975036 中央高校基本科研业务费专项资金项目No.3132016354 辽宁省工业公关计划项目No.2012220006~~
【分类号】：TG174.4
【正文快照】： (HSR-2M)in the water/seawater/oil lubrication respectively.The test results show that the surface withdimple depth of 30 mm has stronger amphiphobic performance and tribological performance than that of15 mm.Compared with the simple texture surface,the a

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