【摘要】：采用2.5D淺交彎聯(lián)碳纖維整體織物作為預制體,以酚醛樹脂為基體,通過熱壓成型工藝制備了碳纖維整體織物結構增強樹脂基復合材料。通過MST-3001摩擦磨損試驗機分別考核了干式與濕式條件下復合材料的摩擦磨損性能;采用掃描電子顯微鏡(SEM)、3D激光掃描形貌儀觀測了材料的表面形貌。結果表明,干式摩擦條件下,動摩擦系數(shù)波動范圍0.12~0.26,隨著轉速的增加摩擦系數(shù)先降低后升高,隨著載荷的增加摩擦系數(shù)變化不明顯。濕式摩擦條件下,動摩擦系數(shù)波動范圍0.08~0.13,隨著轉速和載荷的增加,摩擦系數(shù)降低。在連續(xù)摩擦狀態(tài),干式工況條件下動摩擦系數(shù)波動較大,濕式工況條件下動摩擦系數(shù)非常平穩(wěn)。干式摩擦狀態(tài)時,材料的主要磨損形式為磨粒磨損,而濕式摩擦時主要發(fā)生磨粒磨損和疲勞磨損。
[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.
【作者單位】： 裝甲兵工程學院技術保障工程系;裝甲兵工程學院科研部;北京科技大學材料科學與工程學院;
【基金】：軍隊科研資助項目(2015YC05)
【分類號】：TB332

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