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首页> 外文期刊>Journal of Materials Science >Wear and friction of Al-Al2O3 composites at various sliding speeds
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Wear and friction of Al-Al2O3 composites at various sliding speeds

机译：不同滑动速度下Al-Al2O3复合材料的磨损和摩擦

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摘要

The present study addresses the dry wear behavior of Al2O3 6061 Aluminum particulate composite under different sliding speeds and applied load using pin-on-disk tribometer at room temperature. Three grades of the submicron particle composites containing 10, 20, and 30 vol.% Al2O3 were tested. The results illustrate that higher load and higher concentration of Al2O3 particles lead to higher wear rates. For 10 and 20% Al2O3 concentrations, the wear rate decreases with increasing sliding speed, while it increases for 30% Al2O3. The surface morphologies of the worn composites indicate that at lower sliding speeds abrasion is dominant, while at higher sliding speeds delamination and adhesion increases. Results also indicate that the friction coefficient between the composite and the mating steel surface decreases with increasing sliding speed to a steady state.
机译：本研究使用销盘式摩擦计在室温下解决了Al2O3 6061铝颗粒复合材料在不同滑动速度和施加负载下的干磨损行为。测试了包含10、20和30％（体积）Al2O3的三个等级的亚微米颗粒复合材料。结果表明，较高的负载量和较高的Al2O3颗粒浓度会导致较高的磨损率。对于10％和20％的Al2O3，磨损率随着滑动速度的增加而降低，而对于30％的Al2O3，磨损率则增加。磨损的复合材料的表面形态表明，在较低的滑动速度下，磨损占主导，而在较高的滑动速度下，分层和粘附力增加。结果还表明，复合材料与配合钢表面之间的摩擦系数随着滑动速度的增加而减小，直至达到稳态。

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