表面织构对金属-聚甲醛材料摩擦副磨损行为与机理的影响

发布时间：2018-03-03 13:58

本文选题：表面织构　切入点：聚甲醛　出处：《表面技术》2017年06期 　论文类型：期刊论文

【摘要】：目的研究表面织构对金属-聚甲醛(POM)摩擦副磨损行为和机理的影响。方法通过光刻-电解的方法加工出带有不同参数凹坑的不锈钢试样与聚甲醛(POM)材料配副,在万能摩擦磨损试验机上进行摩擦磨损实验,以评价其摩擦学性能。利用光学显微镜、三维形貌仪和SEM对磨损后的表面形貌以及磨屑形态进行观察分析。结果凹坑深度为5μm、面积率为10%时,减磨效果最明显,磨损率相比无织构试样下降了36.2%。凹坑深度为10μm时,表面织构的引入起到了增大磨损的效果。结论合适参数的表面织构能够有效减小大面积的材料粘着转移现象,对摩擦副具有良好的减磨效果。不恰当的表面织构参数会在凹坑边缘引发严重的应力集中现象,导致不锈钢试样对软材料微切削作用产生,这也是材料磨损率急剧增大的原因。
[Abstract]:Objective to study the effect of surface texture on wear behavior and mechanism of metal-polyformaldehyde (POM) friction pair. Friction and wear experiments were carried out on a universal friction and wear tester to evaluate its tribological properties. Results when the depth of the pit is 5 渭 m and the area ratio is 10, the wear reduction effect is the most obvious, and the wear rate is 36.2% lower than that of the non-texture sample. When the pit depth is 10 渭 m, the wear rate is 36.2% lower than that of the non-textured sample, and the depth of the pit is 10 渭 m. Conclusion the surface texture with appropriate parameters can effectively reduce the adhesion transfer phenomenon of large area of materials. Improper surface texture parameters can lead to serious stress concentration at the edge of the pit, which leads to the micro-cutting of stainless steel to soft material, which is the reason of the material wear rate increasing rapidly.
【作者单位】：南京航空航天大学江苏省精密与微细制造技术重点实验室;
【基金】：南京航空航天大学研究生创新基地(实验室)开放基金(KFJJ20150504) 中央高校基本科研业务费专项资金江苏省自然科学基金-青年项目(BK20150741) 江苏省“双创博士”计划~~
【分类号】：TB302.3

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