304L stainless steel made with a nickel–copper–ruthenium welding consumable

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1、ARTICLEINPRESSCorrosionSciencexxx(2010)xxx–xxxContentslistsavailableatScienceDirectCorrosionSciencejournalhomepage:www.elsevier.com/locate/corsciCorrosionresistanceofweldsintype304Lstainlesssteelmadewithanickel–copper–rutheniumweldingconsumableaba,*bbD.Liang,J.W.Sowards,

2、G.S.Frankel,B.T.Alexandrov,J.C.LippoldaDepartmentofMaterialsScienceandEngineering,TheOhioStateUniversity,Columbus,OH43210,USAbWeldingEngineering,TheOhioStateUniversity,Columbus,OH43210,USAarticleinfoabstractArticlehistory:Ni–Cu–Pdweldingconsumableshavebeenrecentlydevelop

3、edfor300-seriesausteniticstainlesssteelsReceived14January2010suchasType304L(SS304L)toreducetheamountofCr(VI)intheweldingfumes.Inthisstudy,amodifiedAccepted6March2010fillermetalthatreplacesPdwithRuwasevaluated.Initialtestsconductedonbutton-meltedsamplesandAvailableonlinexxx

4、xbead-on-plateweldsindicatedthatNi–Cu–Ruexhibitedgoodcorrosionproperties.ActualNi–Cu–RuarcweldsmadeonSS304LweresuccessfullyproducedandthecorrosionperformancewascomparabletoorKeywords:betterthanthatofNi–Cu–Pdwelds.Theseweldsareasuitablereplacementforweldsmadewithstan-A.Ni

5、alloysdard300-seriesweldingconsumables,suchasSS308L.A.StainlesssteelÓ2010ElsevierLtd.Allrightsreserved.C.LocalizedcorrosionC.Welding1.IntroductionAnyweldingprocessforstainlesssteelmustresultinweldswithsuitablemechanicalandcorrosionproperties.Fromacorro-Stainlesssteelstru

6、cturesareoftenfabricatedbyarcweldingsionperspective,thecriteriafordesigninganewfillermetalforprocessesthatuseCr-containingweldingconsumables.OwingtoweldingSS304weredescribedpreviously[4,7]andspecifiedthat:thehazardsassociatedwithCr(VI)inweldfumesgeneratedby(1)Thecorrosionp

7、otentialoftheweldmetalshouldbeslightlyweldingwithCr-containingconsumables,itisofinteresttodevel-higherthanthecorrosionpotentialofSS304tominimizegalvanicopCr-freeconsumables.Inpreviouswork,weldsinSS304Lmadeattackoftheweldmetal;(2)Thebreakdownpotential(Eb)andwithNi–CuorNi–

8、Cu–Pdweldingconsumablesweresuccessfullyrepassivationpotential(Erp)oftheweldmetalshouldbehigherproduceda