摘要
ThereareabundantnaturalgasresourcesinwesternChina,butmanyoilandgasfieldsarerichinchloridion,sulfuretedhydrogen,carbondioxideandothercorrosivemedium,whichhavestrongcorrosivitytopipeline.Onegasfieldpossessesabundantnaturalgaswithgreatpressure,andthechloridionconcentrationinthewaterseparatedfromgasisabout10%,sothemediumhasgreatcorrosivity.Inordertoensurethesafetyofthepipeline,about13kmlengthpipelineandtheinternalpipesofagastreatmentplantthatpurifiesgasabout12billioncubicmeterayeararemadeof2205duplexstainlesssteel(2205DSS).2205DSShasmanycharacteristicsinweldingwithcomplexweldingprocess;andbecauseofhighqualityrequirementsfortheconstructionofnaturalgaspipelineandrestrictionofon-siteconditions,thesiteweldingisverydifficult.Aroundtheengineeringapplication,alargenumberofexperimentalresearcheshavebeencarriedoutonthematerialmicrostructure,propertiesandweldability.Finallyweldedjointswhichconformtotherequirementsofstandardareobtained,contributingtothefirstlarge-scaleapplicationofthismaterialinthefieldofoilandgaspipelines.Consideringtheengineeringapplicationandthelatestresearchdevelopment,theweldingandkeyfactorsaffectingthejointpropertiesof2205DSSpipesaresummarizedandanalyzed.
出版日期
2016年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
