GCr15-45#鋼納米添加劑潤滑條件下摩擦磨損及自修復(fù)性能研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文GCr1545#鋼納米添加劑潤滑條件下摩擦磨損及自修復(fù)性能研究姓名：左維琦申請學(xué)位級(jí)別：碩士專業(yè)：機(jī)械工程指導(dǎo)教師：劉啟躍201206西南交通大學(xué)碩士研究生學(xué)位論文第fI頁AbstractAllmachinesrunwithfriction，whichcauseswearofthemachinecomponentsWearwillfurtherleadtosurfacedamage，componentfailur

2、eandmaterialloss，whichcausesalargenumberofenergyconsumptionOneeffectivewayteducewearislubricationHoweverthetraditionallubricationoilonlyprolongtheservicelifeofthemachinebyonlyreducingthewearbetweensurfacesofrelativemovem

3、entwithoutofferingtheselfrepairingabilityduringfrictionAdditivesCangreatlyimprovetheperformanceoflubricationoilWiththedevelopmentofNanotechnologyNanomaterialsareappliedtoadditives，improvingmaterialsantiwearantifrictionan

4、dselfrepairingproperties，duetothespecialperformanceoftheNanOadditiveThetestsarecarriedonPLINTDeltalab—NENE7horizontalelectrohydraulicservotieringweartestingmachineThefrictionpairscontactinaball—planemodeSphericalspecimen

5、materialisGCrl5steelandflattestmaterialis45#steelTestresultsareaffectedbychangingthefiequencyloadandothertestparameterswithdifferentNano—additivesinthelubricatingoilAnalysesof45#steel’Swornsurfaces，weardebrisandEDXenergy

6、spectrumwerecarriedoutbyopticalmicroscope，scanningelectronmicroscopeandEDXandroughnessprofilerMainconclusionsaredrawnasfollows：(1)IntheconditionwithoutNanoadditivesthefrictioncoefficientandthewearvolumearebiggerNanoaddit

7、ivescansignificantlyreducethefrictioncoefficientandthewearofmatenal(2)Throughalotoffrictionandweal“teststhewearcharacteristicsofNanotitaniumnitride，Nano—aluminaNano—titaniumdioxideandNanosilicadioxideinbaseoilwerederived

8、withthecomparisongroupofthebaseoilandoilsolubleNanocopperalloyByobservingthecoefficientoffriction，wearscarmorphologyandEDXspectracomparisonanalysisofthefourstateNanomaterialsasanti—friction，anti—weal“andselfrepairingprop

9、ertiesUnderthesameexternalconditions，coefficientoffrictionrelationshipis：A1203Si02Ti02TiNAnti—frictionandanti—wearpropertiesareintheorderoftitaniumnitride，titaniumdioxide，silicaaluminafromgoodtobadComparingtotheresultoft