鎳鈷合金鍍層薄膜的制備及其變形腐蝕行為研究.pdf

1、湘潭大學(xué)碩士學(xué)位論文鎳鈷合金鍍層薄膜的制備及其變形腐蝕行為研究姓名：賀軍申請學(xué)位級(jí)別：碩士專業(yè)：材料物理與化學(xué)指導(dǎo)教師：潘勇20080520AbstractsNickelelectroplatingisutilizedwidelywithgoodadvantagessuchasstrengthtoughnesscrosionwearresistanceaswellasmechanicalproperties.Theapplication

2、sofsuchdepositsfallbasicallyintomadelampslanternscarsbatteriespritingthreemaincategies:decativefunctionalelectrofming.InrecentyearsNiCoalloyshavebeenstudiedextensivelyfmagicapplicationsespeciallyinmicrosystemtechnologyft

3、hemanufactureofsenssactuatsmicrelaysinducts.Thesealloyshavebeendepositedfromavarietyofsimplecomplexbaths.InvestigationsonelectrodepositedNiCoalloyshaveindicatedthattheirpropertiesstronglydependonthecobaltcontent.Howevert

4、hecontentofcobaltintheNiCodepositcanbecontrolledbyexperimentalparameterssuchaselectrolytecompositionpHcurrentdensitytemperaturestirringspeed.Deeplydrawsteelstripwithnickelelectrodepositedcoatingisanewlyhighpropertymateri

5、alfbatteryshellwhichisproducedwithnickelcoatingdepositedonlowcarbonsteelfollowedwithsomespecialoptimumtreatment.MeovertheapplicationsofNiCodepositondeeplydrawsteelstripareexpected.Asaresultthecrosionresistancemicrohardne

6、sswereimprovedespecially.Thestudiesofthismasterthesiscontaintwomainparts.(1)TheamountofcobaltintheNiCodepositbyalteringtheexperimentalparameterssuchaselectrolytecompositioncurrentdensitytemperaturewasstudiedanalyzed.(2)T

7、heeffectoftheelectrolytecompositionoperatingparametersonthecrosionwearresistancemicrohardnessinternalstresstheresistofthedepositwasstudiedrespectively.Inadditiontheeffectofrollingreductiononthecrosionresistancewasinvesti

8、gated.Inthefirstchaptertheresearchbackgroundresearchstatusrelatedwereintroducedatfirst.Thenthebackgroundofthismasterthesiswasinterpreted.Inthesecondchapterthenickelcobaltalloycoatingswereobtainedbydifferentexperimentpara

9、meters.InthethirdchaptertheweightpercentcontentofcobaltinthedepositwasestimatedbyEDXanalysis.Theanalysisrevealedthattheamountofcobaltinthedepositwassignificantlyhigherascomparedtothatpresentintheelectrolytewhichisaacteri