摘要
采用自制的销盘式摩擦磨损试验机研究了三种颗粒增强铝基复合材料及灰铸铁 (HT2 5 0 )与半金属摩擦材料配副的干摩擦磨损性能。结果表明 :在试验条件下 ,复合材料的耐磨性能高于灰铸铁 (HT2 5 0 ) ,其中复合材料Al- 10 % Si/ 30 % Si C(14 μm)的平均磨损率小于灰铸铁的三分之一 ;复合材料的摩擦系数与 HT2 5 0相当。而且从摩擦系数稳定性和摩擦系数达到最大值所需的时间来考察 ,复合材料的性能优于 HT2 5 0。结果表明 ,颗粒增强铝基复合材料可以取代 HT2 5 0 ,用于汽车刹车盘类摩阻件 。
The dry sliding tribological characteristics were investigated with a self-made block-disk tester in the sliding of SiC particle-reinforced aluminum composites and gray cast iron (HT250) against semi-metallic frictional materials. The experimental results indicate that the wear resistance of SiC particle reinforced composites is higher than that of gray cast iron. Among three SiC particle reinforced composites, the wear rate of Al-10%Si/30%SiC (14 μm) is about one third less than that of gray cast iron which is commonly used to make brake disks, while the frictional coefficient is about the same for gray cast iron and SiC particle reinforced composites. Based on the experimental results, the authors suggest that the SiC particle-reinforced aluminum-matrix composite should be one of the suitable materials for making vehicle-braking components.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2002年第3期56-60,共5页
Acta Materiae Compositae Sinica
基金
河南省自然科学基金资助项目 (9840 42 5 0 0 )
河南省 1998年杰出青年基金项目 ()
