Abstract—

The results of studying the effect of the additive powder of the iron-chromium alloy PH-30 on the tribological properties of a composite friction material based on copper operating in the conditions of boundary friction are presented. It is shown that the introduction of 10 to 40 vol % PH-30 powder helps to increase the coefficient of friction from 0.042 to 0.075. It is found that at 10 vol % PH-30 the material’s wear is minimal and is 4 μm/km, while at 40 vol %, catastrophic wear is observed, exceeding 20 μm/km. The limit value of the material’s wear of 9 μm/km is noted with the powder content of PH-30 of less than 28 vol %. The increase in the tribotechnical properties of copper-based friction material with the addition of PH-30 powder is explained by the action of not only the PH-30 powder itself but also Fe₄Cu₃, FeSn intermetallide, and solid ceramic particles of chromium carbide Cr₂₃C₆ formed on the surface after sintering.

中文翻译：

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含铁铬合金粉末的铜基粉末摩擦材料的摩擦学性能

摘要—

提出了研究铁铬合金PH-30的添加粉末对边界摩擦条件下基于铜的复合摩擦材料的摩擦学性能的影响的结果。结果表明，引入10％至40％（体积）的PH-30粉末有助于将摩擦系数从0.042增加到0.075。发现在PH-30的体积百分比为10％时，该材料的磨损极小，为4μm/ km，而在40 vol％的情况下，则观察到了超过20μm/ km的灾难性磨损。注意到材料磨损的极限值为9μm/ km，PH-30的粉末含量小于28 vol％。添加PH-30粉末可提高铜基摩擦材料的摩擦学性能，其原因不仅在于PH-30粉末本身，还包括Fe _{4的作用。}烧结后在表面形成Cu ₃，FeSn金属间化合物和碳化铬Cr ₂₃ C _6的固体陶瓷颗粒。