学科分类
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1 个结果
  • 简介:Automaticgastungstenarc(GTA)weldinghasbeenutilizedtoconnectAZ31magnesiumalloybuttedplateswithAZ61andAZ61-1.0Sbfillerwire.ContrastedtoAZ61fillerwire,theAZ61-1.0Sbfillerwireholdsacomponentof1wt%antimony(Sb).Inthepresentwork,properweldingtechnologyparaneterswereexplored.AndthemicrostructureandperformanceofweldedjointswereanalyzedtoresearchtheinfluenceofSbonmagnesiumalloyweldedjoint.Observedfromthemicrostructureofweldedjoint,additionofSbhasrefinedcrystalgrainsandchangedthepatternofeutecticinbeadandheataffectedzone(HAZ)adjacenttobeadfromdiscontinuousreticulartograininessstructure,whichstrengthentheweaknessofjoint.Inaddition,becauseoftheanchoringactionofMg3Sb2phasesaswellashamperingactiontocrystalboundaryslip,theperformanceofjointweldedbyAZ61-1.0Sbfillerwirehasbeenimproved.

  • 标签: 镁合金 填充线 焊接性质 微结构