碳纤维织物增强树脂基摩擦材料摩擦学性能研究
发布时间：2018-11-24 14:41
【摘要】：采用2.5D浅交弯联碳纤维整体织物作为预制体,以酚醛树脂为基体,通过热压成型工艺制备了碳纤维整体织物结构增强树脂基复合材料。通过MST-3001摩擦磨损试验机分别考核了干式与湿式条件下复合材料的摩擦磨损性能;采用扫描电子显微镜(SEM)、3D激光扫描形貌仪观测了材料的表面形貌。结果表明,干式摩擦条件下,动摩擦系数波动范围0.12~0.26,随着转速的增加摩擦系数先降低后升高,随着载荷的增加摩擦系数变化不明显。湿式摩擦条件下,动摩擦系数波动范围0.08~0.13,随着转速和载荷的增加,摩擦系数降低。在连续摩擦状态,干式工况条件下动摩擦系数波动较大,湿式工况条件下动摩擦系数非常平稳。干式摩擦状态时,材料的主要磨损形式为磨粒磨损,而湿式摩擦时主要发生磨粒磨损和疲劳磨损。
[Abstract]:Carbon fiber fabric reinforced resin matrix composites were prepared by hot pressing process using 2.5D shallow bending carbon fiber monolithic fabric as preform and phenolic resin as matrix. The friction and wear properties of the composites under dry and wet conditions were tested by MST-3001 friction and wear tester, and the surface morphology of the composites was observed by (SEM), 3D laser scanning topography. The results show that the dynamic friction coefficient fluctuates from 0.12 to 0.26 under dry friction conditions. The friction coefficient decreases first and then increases with the increase of rotational speed, but the variation of friction coefficient is not obvious with the increase of load. Under wet friction condition, the dynamic friction coefficient fluctuates from 0.08 to 0.13, and decreases with the increase of rotational speed and load. In the continuous friction condition, the dynamic friction coefficient fluctuates greatly under the dry working condition, and the dynamic friction coefficient is very stable under the wet working condition. In dry friction state, the main wear form is abrasive wear, while wet friction mainly occurs abrasive wear and fatigue wear.
【作者单位】： 装甲兵工程学院技术保障工程系;装甲兵工程学院科研部;北京科技大学材料科学与工程学院;
【基金】：军队科研资助项目(2015YC05)
【分类号】：TB332
[Abstract]:Carbon fiber fabric reinforced resin matrix composites were prepared by hot pressing process using 2.5D shallow bending carbon fiber monolithic fabric as preform and phenolic resin as matrix. The friction and wear properties of the composites under dry and wet conditions were tested by MST-3001 friction and wear tester, and the surface morphology of the composites was observed by (SEM), 3D laser scanning topography. The results show that the dynamic friction coefficient fluctuates from 0.12 to 0.26 under dry friction conditions. The friction coefficient decreases first and then increases with the increase of rotational speed, but the variation of friction coefficient is not obvious with the increase of load. Under wet friction condition, the dynamic friction coefficient fluctuates from 0.08 to 0.13, and decreases with the increase of rotational speed and load. In the continuous friction condition, the dynamic friction coefficient fluctuates greatly under the dry working condition, and the dynamic friction coefficient is very stable under the wet working condition. In dry friction state, the main wear form is abrasive wear, while wet friction mainly occurs abrasive wear and fatigue wear.
【作者单位】： 装甲兵工程学院技术保障工程系;装甲兵工程学院科研部;北京科技大学材料科学与工程学院;
【基金】：军队科研资助项目(2015YC05)
【分类号】：TB332
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