Microstructure and mechanical properties of friction stir welded Lean duplex stainless steel, By Mojtaba Esmailzadeh

Research

Title	Microstructure and mechanical properties of friction stir welded Lean duplex stainless steel
Type	Article
Keywords	—
Journal	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
DOI	—
Researchers	Mojtaba Esmailzadeh (First researcher) ,

Abstract

In thepresentstudy,microstructuresandmechanicalpropertiesofafrictionstirweldedleanduplex stainlesssteelwereexamined.Theplateswith1.5mmthicknesswereweldedataconstantrotation speed of800rpmandweldingspeedsof50,100and150mm/minusingWC-basetool.Theresults showedthatmicrostructuresandmechanicalpropertiesoftheleanduplexstainlesssteeljointswere significantlyaffectedbyweldingconditions.Increasingtheweldingspeeddecreasedthepeak temperatureandthegrainsizeofthe a and g in theweldzone,andhence,improvedhardnessvalue and tensilestrengthofthestirzone.Tensilespecimenswerefailedfromthebasemetalatthe retreatingside.