嵌入式共固化复合材料阻尼结构湿热处理前后的摩擦磨损性能研究

Tribological Properties of Embedded Co-Cured Composite Damping Structures Before and After Hygrothermal Environment Treatment

按照T300/QY8911复合材料预浸料固化工艺曲线制成嵌入式共固化复合材料阻尼结构试件,分别对其进行摩擦、磨损实验,同时对湿热试验后试件作耐磨性对比,获得了该复合材料的摩擦系数和磨损量随阻尼层厚度变化曲线,并对实验数据进行分析和研究;结果表明:湿热处理前后,阻尼结构的抗摩擦、磨损特性是随阻尼层厚度的增加而降低;穿孔阻尼结构能较大程度地提高嵌入式共固化复合材料阻尼结构的抗摩擦、磨损性能;在相同阻尼薄膜厚度情况下,穿孔阻尼结构在湿热处理前摩擦系数和磨损量分别降低了9.85%和16.67%,在湿热处理后摩擦系数和磨损量分别降低了8.32%和11.43%;为进一步探索全天候、超高速、高耐磨性能的嵌入式共固化复合材料有重要的指导意义。

According to the cure curve of T300 / QY8911,the specimens of the embedded co-cured composite damping structure were manufactured. The friction and wear experiments of the specimens were completed and the tribological properties of the embedded co-cured composite damping structure vs. the thickness of damping membrane were obtained by making a comparison with specimens before and after hygrothermal environment treatment,respectively. The result shows that the friction and wear coefficients are enhancing with the increasing of damping layer thickness,and the embedded co-cured perforated damping layer composite structure can improve the tribological properties. In the same thickness of damping membrane,by comparing with a continuous damping structure,the friction and wear coefficients of a perforated damping layer composite structure are decreased by 9. 85% and 16. 67% before hygrothermal environmenttreatment,respectively. The friction and wear coefficients are reduced by 8. 32% and 11. 43% after hygrothermal environment treatment,respectively. The conclusion is very important for the theoretical prediction of the wear-resistant of the embedded co-cured perforated damping layer composite structure.