氮化硅全陶瓷滚动轴承在酸性水溶液中的动态腐蚀磨损行为  

Dynamic Corrosive Wear Behavior of Si3N4 All Ceramic Rolling Bearings in Acidic Aqueous Solution

作　　者：苏柏万[1,2] 辛士红 马越 丁平[5] 曾宇平 SU Baiwan;XIN Shihong;MA Yue;DING Ping;ZENG Yuping(Luoyang Bearing Research Institute Co.,Ltd.,Luoyang 471039,China;Henan Key Laboratory of High Performance Bearing Technology,Luoyang 471039,China;Henan University of Science and Technology, Luoyang 471003,China;China International Science and Technology Cooperation Base for Digitization Design of High Performance Bearing,Luoyang 471039,China;China Astronaut Research and Training Center, Beijing 100094,China;Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050,China)

机构地区：[1]洛阳轴承研究所有限公司,河南洛阳471039 [2]河南省高性能轴承技术重点实验室,河南洛阳471039 [3]河南科技大学,河南洛阳471003 [4]高性能轴承数字化设计国家国际科技合作基地,河南洛阳471039 [5]中国航天员科研训练中心,北京100094 [6]中国科学院上海硅酸盐研究所,上海200050

出　　处：《轴承》2020年第4期38-42,共5页Bearing

摘　　要：为研究水溶液的酸性对全陶瓷轴承磨损特性的影响,制备了氮化硅全陶瓷深沟球轴承,并改装设计一台酸性水溶液耐腐蚀轴承跑合仪,分别在水溶液和酸性溶液中进行轴承运转试验。使用TP-107轮廓仪对试验后轴承沟道形状进行对比,利用激光共聚焦显微镜(LSCM)、扫描电子显微镜(SEM)对轴承工作表面磨损形貌进行微观检查,并开展机理分析。结果表明:在酸溶液中运转,陶瓷轴承工作表面会产生动态腐蚀磨损,轴承轴向游隙增大率高达0.177μm/h,较纯水液中的磨损率增大10倍。In order to study effect of acidity of aqoeous solution on wear characteristics of all ceramic bearings,Si3N4 ceramic deep groove ball bearings are prepared,and a running-in instrument for corrosion-resistant bearings in acidic aqueous solution is modified and designed.The operation tests of the bearings in aqoeous solution and acidic solution are carried out respectively.The TP-107 profilometer is used to compare raceway shape of the bearings after test.The microscopic examination of wear morphology on working surface of the bearings is conducted by using laser scanning confocal microscopy(LSCM)and scanning electron microscopy(SEM),and the mechanism analysis is carried out.The results show that when operation in acidic solution,the working surface of ceramic bearings produce dynamic corrosive wear.The increase rate of axial clearance of the bearings is as high as 0.177μm/h,being 10 times higher than that in pure water.

关 键 词：滚动轴承 氮化硅陶瓷 腐蚀磨损 跑合 显微组织检查 

分 类 号：TH133.33[机械工程—机械制造及自动化] O313.7[理学—一般力学与力学基础]