18Ni(300)钢高速干滑动摩擦磨损特性研究  

Friction and Wear Characteristics of 18Ni(300) Steel at High Speed Dry Sliding Condition

作　　者：王云鹏[1] 孙琨[1] 杨思泽[2] 薛进进 方亮[1] 

机构地区：[1]西安交通大学材料科学与工程学院,陕西西安710049 [2]沈阳鼓风机集团有限公司研究院,辽宁沈阳110869

出　　处：《摩擦学学报》2017年第2期218-224,共7页Tribology

基　　金：国家自然科学基金项目(51475359);中央高校基本科研业务费专项资金(xjj2013111);陕西省自然科学基金(2014JM6219)资助~~

摘　　要：利用销盘高速干滑动摩擦磨损试验机,对18Ni(300)马氏体时效钢的摩擦磨损性能进行了研究,应用JSM-6390A型扫描电子显微镜和X-衍射方法对摩擦磨损表面进行观察,表征其摩擦表面的微观形貌、摩擦磨损的磨屑以及由于摩擦产热而引起的氧化物,进而推断出磨损机制.结果表明:摩擦副的摩擦系数随载荷和速度的增加而下降;随着转速和载荷的增加,销表面氧化物逐渐由FeO转变为Fe_3O_4,其磨损机制由黏着磨损转变为严重的氧化磨损.18Ni（300） Steel had exceptional strength and toughness, which were used in the field of aviation and aerospace. In this study, using a high-speed tribo-tester, tribological behaviors of 18Ni（300） steel were investigated under high speed dry sliding conditions. Morphologies of the worn surfaces and the debris were analyzed by scanning electron microscope and the oxides of worn surfaces caused by friction heat were detected by X-ray diffraction. The results show that： friction coefficient of frictional pair declined with increasing load and speed; With increasing speed and load, oxides on worn pin surface varied from FeO to Fe304 and the wear mechanism transited from adhesive wear into severe oxidation wear.

关 键 词：18Ni(300)钢 摩擦系数 氧化 磨损机理 

分 类 号：TH117.3[机械工程—机械设计及理论]