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首页> 美国卫生研究院文献>Materials >Wear Behaviour of ZA27/SiC/Graphite Composites under Lubricated Sliding Conditions
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Wear Behaviour of ZA27/SiC/Graphite Composites under Lubricated Sliding Conditions

机译：润滑滑动条件下ZA27 / SiC /石墨复合材料的磨损行为

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The composites samples based on ZA27 alloy were subjected to tribological tests and the observed results are presented in this paper. The samples (ZA27/5%SiC and ZA27/5%SiC/5%Gr) were obtained by compo-casting technique. Their wear behaviour was compared to the base alloy. The wear tests were done by using a block-on-disc tribometer under lubricated sliding conditions. Tribological investigation were conducted for three normal loads (40 N, 80 N, and 120 N), three sliding speeds (0.25 m/s, 0.5 m/s, and 1 m/s), and sliding distance of 1200 m. The tested materials were analysed by the scanning electronic microscope (SEM) and the energy dispersive spectrometry (EDS). The presence of oil lubricant improved the wear resistance and friction behaviour of both composites and base alloy. The tested composites show much higher wear resistance than the corresponding matrix material. It was established that the ZA27/5%SiC/5%Gr hybrid composite has best tribological properties.
机译：基于ZA27合金的复合材料进行了摩擦学试验，本文提出了所观察结果。通过Compo-Casting技术获得样品（Za27 / 5％SiC和Za27 / 5％SiC / 5％GR）。将它们的磨损行为与基础合金进行比较。通过在润滑的滑动条件下使用块状盘摩擦计完成磨损试验。进行三种正常载荷（40 n，80 n和120n），三次滑动速度（0.25m / s，0.5 m / s和1米）进行摩擦学研究，并将延伸距离为1200μm。通过扫描电子显微镜（SEM）和能量分散光谱（EDS）分析测试的材料。油润滑剂的存在改善了复合材料和碱合金的耐磨性和摩擦行为。测试的复合材料显示出比相应的基质材料更高的耐磨性。建立ZA27 / 5％SiC / 5％GR杂交复合材料具有最佳的摩擦学性质。

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