摘要
采用Falex型摩擦磨损试验机考察了T8钢/Al2O3陶瓷摩擦副在3种油性剂(T405、T406和T451)与3种极压抗磨剂(T309、T306、T321)作用下的摩擦学性能;用扫描电子显微镜观察试销表面磨损状态;用俄歇电子能谱仪分析了摩擦表面元素化学成分.结果表明:3种油性剂都可以不同程度地改善摩擦副的摩擦磨损性能,其中尤以T405作用效果最佳;3种极压抗磨剂均具有较好的减磨抗磨性能,其中T309的抗磨性能最为突出,T321与T306可以明显降低摩擦系数,相比之下两者磨损率较大;俄歇电子能谱分析揭示在T309作用下,由于摩擦化学反应在T8钢试销磨损表面形成了含S、P物质层;油性剂作用下摩擦副的磨损形式主要为磨料磨损,而T309作用下磨损形式主要为磨料磨损与摩擦化学(腐蚀)磨损.
The tribological properties of T8 steel pin sliding against Al_2O_3 ceramics disc under the lubrication of 500SN base oil containing various lubricant additives were investigated on a Falex test rig in a pin-on-disc configuration. The worn surfaces of the steel pins were observed on a scanning electron microscope, while the chemical compositions of the worn steel surfaces were analyzed by means of Auger electron spectroscopy. Thus sulfurized cottonseed oil (T405), fatty acid amine salt of benzotriazole (T406), phosphate (T451), tricresyl phosphate (T306), benzene thiophosphate (T309), and sulfurized isobutylene (T321) were tested as the additives in the 500SN oil at a fixed mass fraction of 2% or 0.5% (T406). It was found that all the tested additives functioned to improve the friction-reducing and antiwear abilities of the base stock to varied degrees. T405, T406, and T309 functioned to greatly improve the antiwear ability of the base stock. T306 and T321 had marginal effect on the antiwear ability of the base stock, which could be related to their stronger corrosiveness to the T8 steel. The worn surfaces of the T8 steel pins lubricated with different lubricant systems were characterized by adhesion and scuffing.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2004年第1期29-32,共4页
Tribology
基金
国家自然科学基金资助项目(50175013)
清华大学摩擦学国家重点实验室开放基金资助项目(SKLT98-3
SKLT00-5)
江苏省自然科学基金资助项目(BK2002059).
