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MicrostructureandMechanicalPropertiesofOxygenFreeCopperElectronBeamWeldingJoints
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(AVIC ManufacturingTechnologyInstitute,Beijing£±£°£°£°£²£´,China)
Abstract:The£´£° mm thick OFC platesastheresearchobject weldedbyelectronbeam welding with
appropriateprocessparameters£®Microstructureand mechanicalpropertiesofOFC weldingjointswerecompared
withbasematerial£®Theresultsshowthattheweldingjointhasnoapparentsurfacedefects,theweldzonenailedand
themicrostructureascastequiaxedcrystalgrainaftertheelectronbeamweldingofOFC£®Theweldingjointhasgood
performance,anditshardness,tensilestrengthandplasticitywereequaltothatofthebasematerial£®
Keywords:oxygen£Çfreecopper;electronbeam welding;microstructure;mechanicalproperty
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