Friction Characteristics of Impregnated and Non-Impregnated Graphite against Cemented Carbide under Water Lubrication  

作　　者：Gaolong Zhang Ying Liu Fei Guo Xiangfeng Liu Yuming Wang 

机构地区：[1]The State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China

出　　处：《Journal of Materials Science & Technology》2017年第10期1203-1209,共7页材料科学技术（英文版）

基　　金：supported by the National Basic Research Program of China (973) (Grant No. 2015CB057303);the National Natural Science Foundation of China (Grant No. 51275268)

摘　　要：The friction behavior of resin-impregnated and non-impregnated graphite sliding against a cemented carbide in dry, oil, and water environments using a ring–ring configuration was investigated. Friction coefficients were recorded at various speeds. The results showed that the impregnated graphite exhibited much better friction properties under water or oil lubrication than non-impregnated graphite, and the impregnated graphite could remain in the stable friction regime under high pressure × velocity（pv）.Based on scanning electron microscopy and Raman spectroscopy analyses, the different characteristics between impregnated and non-impregnated graphite were able to be attributed to the structure of the graphite and wettability of the lubricants.The friction behavior of resin-impregnated and non-impregnated graphite sliding against a cemented carbide in dry, oil, and water environments using a ring–ring configuration was investigated. Friction coefficients were recorded at various speeds. The results showed that the impregnated graphite exhibited much better friction properties under water or oil lubrication than non-impregnated graphite, and the impregnated graphite could remain in the stable friction regime under high pressure × velocity（pv）.Based on scanning electron microscopy and Raman spectroscopy analyses, the different characteristics between impregnated and non-impregnated graphite were able to be attributed to the structure of the graphite and wettability of the lubricants.

关 键 词：FRICTION Resin-impregnated graphite Non-impregnated graphite Cemented carbide Water lubrication 

分 类 号：TG135.5[一般工业技术—材料科学与工程]