鋁合金襯底電弧離子鍍氮化物膜層的研究.pdf

1、沈陽工業(yè)大學(xué)碩士學(xué)位論文鋁合金襯底電弧離子鍍氮化物膜層的研究姓名：靳偉申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：宋貴宏20070305鋁合金襯底電弧離子鍍氮化物膜層的研究TheNitrideCoatingsOllAluminiumAlloySubstratebyArcIonPlatingAbstractThepossibilityofwear，chemicalcorrosionandhightemperatureoxidationofth

2、epartswillbereducedbytheapplicationofphysicalvapourdeposition(PVD)DepositingprotectivecoatingsonthealuminiumalloypartswillimprovetheWeal“resistance，corrosion—resistance，mliabilityandtheUSelifeofthepartsThepurposeofthiswo

3、rkistoinvestigatetheinfluencesofthenitrogenpartialpressure，substratebiasvoltage，thicknessandsubstratematerialonthestructure，elementcontent，mechanicalproperties，corrosionpropertiesof(TiA1)Ncomingspreparedbyarcionplating(A

4、IP)，anddepositeandexplorethegraded(Ti，A1)NcoatingsNitrogenpartialpressurehasgreatinfluenceonthestructure，compositionandcorrosionpropertyof(Ti，A】)Ncoatings，whichweredepositedonaluminianaalloyWhenthenitrogenpartialpressure

5、islow，thecoatingscontain(Ti，A1)Nphaseandmetalrich(Ti，AI)2Nphase；Withtheincreaseofnitrogenpartialpressure，metalrich(Ti，AI)2Nphasedisappears，only(Ti，A1)Nphaseexists；thecontentofaluminiumandtitaniumdecreases，thenitrogencont

6、entincreases；thenumberofbigparticlereduces；thedepositionratecutsdown；thecorrosion—resistanceofthecoatingsincreaseUnderthesameprocessingparameters，thecorrosion—resistancepropertyof(Ti，A1)Ncoatings，whichweredepositedonthe7

7、075aluminiumalloysubstrateisslightlybetterthanthatofthecoatingswhichweredepositedonthe2024aluminiumalloysubstrate(Ti，AI)Ncomingswithagradientnitrogenelementdistributionweredepositedonthealtmtiniumalloysubstratebygraduall

8、yincreasingthenitrogenflowrateduringdepositionThebiasvoltagehasbiginfluenceonthepropertiesofgraded(Ti，A1)NcoatingsComparedwiththelowbiasvoltage，thepropertiesofgraded(Ti，AI)Ncoatingsthatdepositedinthehighbiasvoltagearemuc

9、hbetterasthenumberofbigparticlereduces；thecompactednessincreases；themechanicalpropertiesandcorrosion—resistanceincreaseBythecomparisonofthecorrosionpropertyof“graded(Ti，AI)Ncoatingsand(Ti，AI)Ncoatings，theresultshowsthat，