摘要
在M 2000型摩擦磨损实验机上,对3种C/C复合材料与40Cr钢配副分别在干态、水润滑、油润滑3种条件下的摩擦磨损行为进行了研究。结果表明:在3种润滑条件下,干态摩擦试样的摩擦系数最大,体积磨损最小;基体炭为树脂浸渍炭的试样在3种试样摩擦系数最高,约为0.141～0.205;水润滑时试样的摩擦系数最小,为0.05～0.10,但体积磨损最大,最高可达7.75mm3;油润滑时试样的摩擦系数和体积磨损均介于干态和水润滑之间;干摩擦时,试样的摩擦系数随着载荷增加而缓慢降低,水润滑和油润滑的摩擦系数则随着载荷的增加而先增加后减少;干态摩擦时材料表面形成了完整的摩擦膜,水润滑和油润滑条件下摩擦膜很薄且不完整;所有润滑条件下试样均以磨粒磨损或犁削磨损为主。
Using M-2000 tribology machine, under non-lubrication, water-lubrication and oil-lubrication test situation, the tribology properties of three kinds of C/C composites were studied with the 40Cr steel as couple part. The results show that among the three kinds of test situation, the samples tested under non-lubrication situation own the highest friction coefficient and the least bulk worn loss under the same loading, and among the three kinds of composites tested under the non-lubrication test situation, the resin carbon matrix sample exhibits the highest friction coefficient that is between 0.141 and 0.205. The samples friction coefficient under water-lubrication test situation is the least that is between 0.05 and 0.10, but their bulk worn loss is the highest that can be 7.75 mm^3 under 150 N loading. Both friction coefficient and bulk worn loss of the samples under oil-lubrication test situation are the midst. The samples friction coefficient under non-lubrication test situation decreases slowly with increasing load, while those of the samples under water-lubrication or oil-lubrication test situation increase at first but decrease at last. SEM shows that the integrity friction film is only formed on the non-lubrication tested sample. The wear mechanism under all test situations is abrasion wear and plough wear.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2004年第8期1405-1409,共5页
The Chinese Journal of Nonferrous Metals
基金
高校骨干教师基金(教技司[2000]143号)
