Al_2O_3内衬抽油管中3种扶正器材料的摩擦磨损行为研究  

Friction and Wear Behaviors of Three Materials for Sucker Rod Centralizer in Al_2O_3 Ceramics-lined Pipes

作　　者：苏振国[1] 杨永利 陆有[1] 孙世杰 安健[1] 

机构地区：[1]吉林大学汽车材料教育部重点实验室,吉林长春130025 [2]松原大多油田配套产业有限公司,吉林松原138000

出　　处：《摩擦学学报》2010年第3期235-242,共8页Tribology

基　　金：吉林省科技发展计划(20080314)资助

摘　　要：研究了纤维增强尼龙、球墨铸铁及淬火处理球墨铸铁3种扶正器材料在干摩擦和油井产出水润滑条件下与陶瓷的磨损行为,采用激光共聚焦显微镜、扫描电子显微镜、傅立叶变换红外光谱仪、数字温度计、差示扫描量热仪和X射线光电子能谱分析仪对试验材料的组织、磨损机制和磨损表面的化学结构变化进行分析.结果表明:在润滑条件下3种材料的摩擦系数略小于干摩擦的摩擦系数,其中尼龙的摩擦系数最小.在干摩擦和油田产出水润滑条件下,3种材料中淬火处理球墨铸铁的磨损量最小.在油田产出水润滑条件下尼龙的磨损量超过干摩擦的磨损量,远大于铸铁的磨损量,可归因于热变形、降解以及机械微切削因素的共同作用.The friction and wear behaviors of three materials for sucker rod centralizer including fiber-reinforced nylon,nodular cast iron and quenched nodular cast iron against Al2O3 ceramics under dry sliding and oil field water lubricating conditions were investigated on a pin-on-disc tribometer.A laser optical microscopy,scanning electron microscopy,Fourier transform infrared（FTIR）spectrometer,digital temperature measurement system and X-ray photoelectron spectrometer were used to investigate the microstructure,wear mechanism and chemical nature change of the investigated materials.The results showed that the coefficient of friction under lubricated condition was slightly lower than that under dry sliding and nylon 66 exhibited the lowest coefficient of friction.The quenched nodular cast iron showed the lowest wear under both dry sliding and lubricated conditions.The wear of nylon under lubricated condition was higher than that under dry sliding,and was much higher than that of nodular cast iron and quenched nodular cast iron.The high wear of nodular cast iron and quenched nodular cast iron was attributed to the combination of hot deformation,degradation and micro-ploughing.

关 键 词：尼龙 球墨铸铁 磨损 干摩擦 润滑 

分 类 号：TG113.1[金属学及工艺—物理冶金]