純鋅在模擬體液中的腐蝕行為及力學(xué)行為的研究

純鋅在模擬體液中的腐蝕行為及力學(xué)行為的研究摘要：通過電化學(xué)方法對純鋅在模擬體液中的腐蝕行為及力學(xué)行為進(jìn)行了研究。實(shí)驗(yàn)結(jié)果表明，在模擬體液中，鋅的腐蝕行為呈現(xiàn)出質(zhì)量損失隨時間呈指數(shù)增長的趨勢，并且被氧化膜和氫氧化鋅覆蓋，表明鋅可以有效地保護(hù)它的本身。力學(xué)行為的研究表明，在鋅的腐蝕中，鋅的應(yīng)力-應(yīng)變曲線呈現(xiàn)出典型的彈性-塑性行為，其中變形分為兩個階段：第一階段變形由于表面缺陷呈現(xiàn)出顯著的增加，第二階段的變形與表面膜和化學(xué)鍍層的形變相關(guān)。本研究為鋅的應(yīng)用提供了有益的參考。

關(guān)鍵詞：純鋅，模擬體液，腐蝕行為，力學(xué)行為

Abstract:Thecorrosionbehaviorandmechanicalbehaviorofpurezincinsimulatedbodyfluidwereinvestigatedbyelectrochemicalmethods.Theexperimentalresultsshowedthatthecorrosionbehaviorofzincinsimulatedbodyfluidshowedanexponentialincreaseinmasslosswithtimeandwascoveredbyoxidefilmandzinchydroxide,indicatingthatzinccouldeffectivelyprotectitself.Thestudyofmechanicalbehaviorshowedthatinthecorrosionofzinc,thestress-straincurveofzincshowedtypicalelastic-plasticbehavior,wheredeformationwasdividedintotwostages:thefirststageofdeformationduetosignificantincreaseinsurfacedefects,andthesecondstageofdeformationrelatedtothedeformationofsurfacefilmandchemicalplating.Thisstudyprovidesausefulreferencefortheapplicationofzinc.

Keywords:purezinc,simulatedbodyfluid,corrosionbehavior,mechanicalbehaviorInrecentyears,theapplicationofzincinvariousfieldshasbecomeincreasinglywidespread,suchasintheconstructionindustry,automotiveindustry,andeveninbiomedicalapplications.However,thecorrosionbehaviorandmechanicalpropertiesofzincareimportantfactorstoconsiderintheseapplications.

Toinvestigatethecorrosionbehaviorofpurezinc,variousstudieshavebeenconducted,includingimmersioninsimulatedbodyfluid(SBF).SBFmimicsthechemicalcompositionofhumanbloodplasmaandiscommonlyusedtosimulatetheinvivoenvironment.TheresultsofthesestudieshaveshownthatthecorrosionrateofzincisdependentonboththeimmersiontimeandSBFconcentration.

Furthermore,wheninvestigatingthemechanicalbehaviorofcorrodedzinc,itwasfoundthatthestress-straincurveofzincundertensileloadingdisplaystypicalelastic-plasticbehavior,wheredeformationoccursintwostages.Thefirststageinvolvesasignificantincreaseinsurfacedefects,includingpitsandcracks,andthesecondstageisrelatedtothedeformationofthesurfacefilmandchemicalplating.

Thesefindingsprovidevaluableinformationfortheapplicationofzincinvariousfields.Forexample,inbiomedicalapplicationssuchasimplantmaterials,thecorrosionbehaviorofzinccanbeadjustedbychangingtheSBFconcentrationtoimproveitsbiocompatibility.Additionally,themechanicalbehaviorofzinccanbeimprovedbymodifyingthesurfaceproperties,suchasthroughtheapplicationofcoatingsorthecontrolofthechemicalenvironment.

Inconclusion,understandingthecorrosionbehaviorandmechanicalpropertiesofzinciscrucialforitssuccessfulapplicationinvariousfields.FuturestudiescanfurtherinvestigatethefactorsaffectingthesepropertiesandexplorenewmethodsforimprovingtheperformanceofzincmaterialsAnotherimportantaspectofzincisitspotentialasabiodegradablematerial.Withtheincreasingdemandforbiomedicalimplants,suchasstentsandbonescrews,thereisaneedformaterialsthatcandegradeinthebodywithoutcausingharmortoxicbyproducts.Zinchasbeenshowntohavepromisingbiodegradableproperties,asitcanbesafelymetabolizedbythebodyandhasessentialphysiologicalfunctions.

Studieshavealsoshownthatzinccanexhibitantibacterialproperties,makingitapotentialcandidateformedicaldevicecoatingsandwounddressings.Zincoxidenanoparticles,forexample,havebeenshowntoinhibitthegrowthofbacteriaandfungi,suggestingtheirpotentialuseasantimicrobialagents.

Furthermore,zinchasapplicationsinthefieldofenergystorage.Zinc-airbatteries,whichusezincasananodeandoxygenfromtheairasacathode,havethepotentialtobealow-costandenvironmentallyfriendlyalternativetocurrentlithium-ionbatteries.Thehighenergydensityandabundanceofzincmakeitanattractivematerialforthisapplication.

Overall,theversatilepropertiesofzincmakeitavaluablematerialinvariousfields,fromcorrosionprotectiontobiodegradableimplantsandenergystorage.ContinuedresearchanddevelopmentcanfurtherunlockthepotentialofthisversatilemetalInadditiontoitsvariouspracticalapplications,zinchasseveralpropertiesthatmakeitavaluablematerialinthefieldofbiomedicine.Oneofthemostcommonusesofzincinmedicineisasadietarysupplement.Zincisanessentialmineralthatisrequiredformanyphysiologicalprocessesinthebody,includingimmunefunction,geneexpression,andproteinsynthesis.Zincsupplementationhasbeenshowntoimprovesymptomsofcertainconditions,suchasdiarrhea,woundhealing,andage-relatedmaculardegeneration.

Zincisalsousedinthemanufacturingofmedicaldevicesandimplants,particularlyinorthopedicanddentalapplications.Duetoitsbiocompatibilityandcorrosionresistance,zincisanidealmaterialforuseinbiodegradableimplants.Theseimplantsgraduallybreakdownandareabsorbedbythebodyovertime,reducingtheriskofimplantrejectionorcomplications.Zinchasalsobeenstudiedforitspotentialindrugdeliverysystems,asitcanbeusedtoencapsulateandprotectsensitivedrugsfromdegradation.

Inadditiontoitsbiomedicalapplications,zinchasalsobeenstudiedforitspotentialinenvironmentalremediation.Zincoxidenanoparticles,forexample,havebeenshowntohaveantibacterialpropertiesandcanbeusedtotreatcontaminatedwaterandsoil.ZincoxidenanoparticlescanalsobeusedasaUVfilterinsunscreenandotherpersonalcareproducts,astheyabsorbandscatterUVradiationtopreventskindamage.

Overall,thediversepropertiesandapplicationsofzincmakeitavaluablematerialinawiderangeoffields,fromindustryandtechnologytobiomedicineandenvironmentalscience.Continuedresearchanddevelopmentcanhelptounlockthefullpotentialofthisversatilemetaland