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首页> 外文会议>29th Leeds-Lyon Symposium on Tribology Sep 3-6, 2002 University of Leeds, UK >HIGH TEMPERATURE ABRASION BEHAVIOUR OF Al/SiC_p COMPOSITES
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HIGH TEMPERATURE ABRASION BEHAVIOUR OF Al/SiC_p COMPOSITES

机译：Al / SiC_p复合材料的高温磨损行为

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摘要

In this study, high temperature wear behaviour of commercially pure Al matrix and Al-8 wt.% Mg alloy matrix composites reinforced with 60 vol.% SiC_p were compared. Composites were produced by pressure infiltration technique and their tribological performance were examined by abrasive wear tests at various temperatures up to 500℃. Wear tests were carried out under normal stress of 0.7 N/mm~2 by rubbing on 125 μm Al_2O_3 abrasive grains bonded to belts. At all testing temperatures, the Al-8 wt.% Mg alloy matrix composite exhibited lower wear rate than that of pure Al matrix composite. Wear rates of the composites were almost independent from test temperatures up to 200℃. At temperatures higher than 200℃, the wear rate of both composites increased dramatically with increasing test temperature.
机译：在这项研究中，比较了市售纯Al基体和60vol。％SiC_p增强的Al-8 wt％Mg合金基复合材料的高温磨损行为。通过压力渗透技术生产复合材料，并通过在高达500℃的各种温度下的磨蚀测试来检验其摩擦学性能。通过在粘结到皮带上的125μmAl_2O_3磨粒上摩擦，在0.7 N / mm〜2的法向应力下进行磨损测试。在所有测试温度下，Al-8 wt％Mg合金基复合材料的磨损率均低于纯Al基复合材料。复合材料的磨损率几乎与最高200℃的测试温度无关。在高于200℃的温度下，两种复合材料的磨损率都随着测试温度的升高而急剧增加。

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