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时间:2020-03-28
《ZDDP润滑下表面纳米化316L不锈钢的摩擦学性能.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、石油学报(石油加工)2016年4月ACTAPETROLEIS1NICA(PETROLEUMPROCESSINGSECTION)第32卷第2期文章编号:1001~8719(2016)02—0297—08ZDDP润滑下表面纳米化316L不锈钢的摩擦学性能王艳艳,岳文,佘丁顺,付志强’黄海鹏。,刘家浚。(1.中国地质大学工程技术学院,北京100083;2.中国石化润滑油研发中心,北京100085;3.清华大学机械工程系,北京100084)摘要:采用SRV摩擦磨损试验机考察了表面纳米化316L不锈钢在PAO4和ZDDP润滑下的摩擦学性能。采用X射线衍射仪(XRD)和金相显微镜表征纳米化样品的
2、微观组织结构,采用扫描电子显微镜(SEM)和x射线光电子能谱仪(XPS)分析摩擦反应膜的微观形貌和化学组成。结果表明,表面纳米化明显提高了316L不锈钢的表面硬度,同时在表面产生了具有储油作用的微坑,在PAO4润滑下,纳米化样品的减摩抗磨性优于未处理样品;在添加ZDDP的PAO4润滑下,在纳米化表面形成了链长较短的磷酸盐膜,膜中Zn和P的含量也高于未处理样品,黏着磨损明显减轻,抗磨性提高幅度更为显著。关键词:表面纳米化;316L不锈钢;ZDDP;摩擦学性能中图分类号:TG178文献标识码:Adoi:10.3969/j.issn.1001—8719.2016.02.010Tribolo
3、gicalPropertiesofSurfaceNanOcrystallized316LStainlessSteelUnderZDDPLubricationWANGYanyan,YUEWen,SHEDingshun,FUZhiqiang,HUANGHaipeng。,LIUJiajun(1.SchoolofEngineeringandTechnology,ChinaUniversityofGeosciences,Beijing100083,China;2.R&DCenterofLubricantCompany,SINOPEC,Beijing100085,China;3.Departme
4、ntofMechanicalEngineering,TsinghuaUniversity,Beijing100084,China)Abstract:Thetribologicalpropertiesof316Lstainlesssteelprocessedbyultrasonicsurfacenanocrystal1izationwereinvestigatedbyaSRVtribometerunderPAO4andZDDPlubrications.Themicrostructuralevolutionsofthenanocrysta11izedsamplewerecharacter
5、izedbyX—raydiffraction(XRD)andopticalmicroscope.Themorphologiesofthewearsurfacesandchemicalcompositionoftribofilmswereinvestigatedbyscanningelectronmicroscopy(SEM)andX—rayphotoelectronspectroscopy(XPS),respectively.TheresultsshowedthatultrasonicsurfacenanocrystallizatiOntreatmentcouldsignifican
6、tlyimprovethehardnessof316Lstainlessstee1.Themicro—dimplesonthenanocrystaIlizedsurfacemightplayaroleaslubricantreservoirs,thusthefriction—reductionandanti—wearpropertiesofnanocrystallizedsampleweremuchbetterthanthoseoftheoriginalsampleunderPA04lubrication.Thewearresistanceofthenanocrvstal1izeds
7、amplewasremarkablyimprovedunderPAO4+ZDDPlubrication,whichwasattributedtotheformationofapolyphosphatetribofilmwithshorterchainlengthandthehighercontentsofZnandPinthetribofilmonthenanocrvstal1izedsurface。thustheadhesivewearwasreduce
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