Study on the failures of weld joints of high yield strength steels 355 and 460 and application of advanced procedures in flux cored ARC welding to avoid failures

Abstract

quotABSTRACT newlineAs a part of the research work for the award of the Doctor of Philosophy, the newlineinvestigations have been performed on the frequent failures of Welded Structures of newlineHeavy Industries, Architectural Buildings, Airports and Offshore Structures. newlineParticularly many failures have been noticed during the welding process of the roof newlinehoops and bias members of the heavy structural joint construction of the three newlineinterconnected terminal buildings of the Changi Airport in Singapore. In this context, newlineexperimental studies have been performed on transient heat transfer in welding newlinedistortion control by using FCAW-SS (flux-cored arc welding- Self Shielded-SS) newlineprocess by using three-dimensional welding in High Strength 355 MPa Yield newlineStrength and 460 MPa Yield Strength Steels.quot newline newline