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Abstract:A UNSS£³£±£¸£°£³duplexstainlesssteelwastreatedbysolid£Çsolutionat£±£µ£·£³ K and£±£³£²£³ K,

respectively,andthentreated bycoldrolling and annealinginsequence£®Theinterfacialboundarycharacter

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propertieswasanalyzed£®Theresultsshowthataftersolid£Çsolutionat£±£µ£·£³Kfollowedbycoldrollingandannealing,

theequiaxedstructurewithevenlydistributed¦Áand¦Ãphaseswasobtainedintestedsteelandalargenumberoflow£Ç

energyphaseboundarieswithK£ÇSandN£ÇW orientationrelationshipappeared£®Thepercentageoflow£Çanglegrain

boundariesin¦Áphasewasover£µ£°£¥£®Theselow£Çenergyboundarieshinderedthegrowthofgrains,resultinginthe

improvementofintergranularcorrosionresistanceoftestedsteel£®Aftersolid£Çsolutionat£±£³£²£³Kfollowedbycold

rollingandannealing,the microstructureoftestedsteelwascomposedofband£Çlike¦Á£«¦Ãphasesandthephase

boundarieswith K£ÇSand N£ÇW orientationrelationship wererelativelyfew£®There were mainlyhigh£Çanglegrain

boundariesin¦Áphase£®Theintergranularcorrosionresistancewasrelativelypoor£®

Keywords:orientationrelationship;duplexstainlesssteel;intergranularcorrosion;EBSDtechnology

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