Abstract The effect of serpentine natural mineral powder as additive on the friction and wear of tin bronze against steel under oil lubrication was investigated by four-factor and three-level orthogonal experiments using SRV4 sliding wear tester. Results show that the tribological properties of tin bronze were remarkably improved by the addition of serpentine powder into the oil. The importance order that affects the friction reducing performance was load, serpentine content, reciprocating frequency, and sliding time. The order of the antiwear property was frequency, content, load, and time. During the friction process, a non-conductive tribofilm consisting of metal oxides, oxide ceramic particles, graphite, and organics was formed on the tin bronze worn surface by serpentine mineral. The nanohardness and elastic modulus of the film demonstrated the gradient variation that low in the surface and high in the sub-surface, which is favorable for the improvement of the tribological behaviors.

中文翻译：

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含蛇纹石天然矿物添加剂油润滑的钢/青铜摩擦对的摩擦磨损行为

摘要 采用SRV4滑动磨损试验机，通过四因素三水平正交试验研究了蛇纹石天然矿物粉作为添加剂对油润滑下锡青铜与钢的摩擦磨损的影响。结果表明，在油中加入蛇纹石粉可显着改善锡青铜的摩擦学性能。影响减摩性能的重要顺序是载荷、蛇纹石含量、往复频率和滑动时间。抗磨性能的顺序是频率、含量、载荷和时间。在摩擦过程中，蛇纹石矿物在锡青铜磨损表面形成由金属氧化物、氧化物陶瓷颗粒、石墨和有机物组成的非导电摩擦膜。