随着石墨颗粒含量从5%增加到20%，镁合金基复合材料的耐磨性得到明显的改善，磨损质量损失与摩擦系数都降低到较低水平。

With graphite particle content increasing from 5% to 20%, wear weight-loss and friction coefficient of the composites are obviously declined, greatly improving wear resistance of the composites.

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其主要功能是减少轴瓦与曲轴间的滑动摩擦磨损，提高发动机曲轴及连杆的使用寿命。

Its primary functions are to reduce wear and tear between bearing and shaft, and raise longevity of shaft and connection rod.

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低摩擦系数—切屑与刀具间的摩擦系数应当较低。这会使磨损率较小及切屑流动更好。

Low friction-the coefficient of friction between the chip and tool should be low. This would allow for lower wear rates and better chip flow.

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