铜合金镶嵌石墨材料的摩擦磨损性能  

Friction and Wear Properties of Copper Alloy Inlaid Graphite Material

作　　者：史科 王文东[2] 司明明 王飞[2] 张超[2] SHI Ke;WANG Wendong;SI Mingming;WANG Fei;ZHANG Chao(State Nuclear Power Engineering Co.,Ltd.,Shanghai 200233,China;Shanghai Research Key Laboratory for Engineering Materials Evaluation,Shanghai Research Institute of Materials,Shanghai 200437,China)

机构地区：[1]国核工程有限公司,上海200233 [2]上海材料研究所,上海市工程材料应用评价重点实验室,上海200437

出　　处：《机械工程材料》2021年第5期50-55,共6页Materials For Mechanical Engineering

基　　金：2019年度(工业强基)产业转型升级发展专项资金资助项目(GYQJ-2019-1-24)。

摘　　要：将硬度和强度不同的2种石墨分别镶嵌于Cu-15Ni-8Sn合金基体上,然后将Cu-15Ni-8Sn合金镶嵌石墨材料与05Cr17Ni4Cu4Nb沉淀硬化不锈钢组成摩擦副,研究了不同载荷(490,980,1470 N)和润滑条件(干摩擦与湿摩擦)下该材料的摩擦磨损性能。结果表明:干摩擦条件下该材料的摩擦因数随载荷的增大基本呈增大趋势,且镶嵌较高硬度和强度石墨时材料的干摩擦因数小于镶嵌较低硬度和强度石墨时材料的;湿摩擦条件下,镶嵌较高硬度和强度时石墨材料的摩擦因数随载荷的增大而增大,且与干摩擦条件下的相当;随着载荷的增大,在干摩擦和湿摩擦条件下的磨损量均呈增大趋势;干摩擦条件下石墨的磨损机制以磨粒磨损为主,并伴有疲劳磨损,而湿摩擦条件下的磨损机制以磨粒磨损和冲刷磨损为主。Two kinds of graphite with different hardness and strength were inlaid in the Cu-15 Ni-8 Sn alloy matrix.The friction pairs of Cu-15 Ni-8 Sn copper alloy inlaid graphite material and 05 Cr17 Ni4 Cu4 Nb precipitation hardened stainless steel were obtained.The friction and wear properties of the material under different loads(490,980,1470 N)and different lubrication conditions(dry friction and wet friction)were studied.The results show that under dry friction condition,the friction coefficient of the materials almost increased with load,and the dry friction coefficient of the material with higher hardness and strength graphite was smaller than that of the material with lower hardness and strength graphite.Under wet friction condition,the friction coefficient of the material with higher hardness and strength graphite increased with load,but was similar with that under dry friction condition.With increasing load,the wear loss under dry friction and wet friction increased.The wear mechanism of graphite was abrasive wear accompanied with fatigue wear under dry friction condition,and was abrasive wear and erosive wear under wet friction condition.

关 键 词：铜合金镶嵌石墨 摩擦因数 磨损机制 

分 类 号：TB333[一般工业技术—材料科学与工程]