The Effects of Intermixed Weld Metal on mechanial properties.pdf

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1、TheEffectsofIntermixedWeldMetalonMechanicalProperties—PartIDilutionfromFCAW-SweldmetalsinfluencesSMAWmechanicalpropertiesBYM.A.QUINTANAANDM.Q.JOHNSONABSTRACT.Itiscommonforindividualingmanufacture.Repairweldsareoftenmizedwithoutconsideringdilutionef-weldjointstobefabricatedusingacom-madewithwelding

2、consumablesandpro-fectsfromeithertheunderlyingbasebinationofelectrodetypesandweldingcessesdifferentfromthoseusedinthemetaloraweldmetalofdifferentchem-processes.Whilethissituationarisesoriginaljointconstruction.Forexample,icalcomposition.Weldingconsumablemostoftenasaresultofrepairwelding,shieldedme

3、talarcwelding(SMAW)re-specificationsstandardizeonthetypeofitalsocanariseduetoscheduledfabri-pairsinsubmergedarcwelding(SAW)de-basematerialtobeusedforcertificationcationsequencing,whichrequiresaposits,gasmetalarcwelding(GMAW)andconformancetesting.Accordingly,changefromoneelectrodeand/orpro-deposits

4、,gas-shieldedfluxcoredarcelectrodesaredesignedtoproduceweldcesstoanotherwithinthesameweldwelding(FCAW-G)depositsorself-metalmechanicalpropertiesthroughop-joint.Whenweldmetalsderivingtheirshieldedfluxcoredarcwelding(FCAW-S)timizationofthealloydesignandtheusepropertiesfromdifferentmetallurgicaldepos

5、itsarecommon.Formanyapplica-ofslag/metalreactionstocreatethemechanismsareintermixedinthesametions,theuseofdifferentweldingcon-propercompositionandmicrostructure.joint,theresultingpropertiesofthecom-sumablesandprocessesinasingleweldDependingontheanticipatedservicere-binationhavecausedsomeconcern.jo

6、intisplannedinthenormalfabricationquirementsandtheoperatingcharacter-Thisworkisthefirstinaseriesthatex-sequence.Often,itisnotpracticalorcost-isticsdesired,thealloylevelsandslagaminestheintermixingofconventionaleffectivetofabricateaweldedjointusingsystemsareoptimizedindifferentways.carbon-manganese

7、weldmetalswithasingleconsumableandprocess.Forex-Theintroductionofelementsthroughdi-variousself-shieldedfluxcoredarcample,manylinepipeweldsarepro-lution/intermixingatlevelsnotoriginallyweldmetals.Inthiscase,twodif