Deleterious phasesresulting from the induction bending of thick-walledsuper-duplexpipework Temperfree inductionbendingcanh aveasignificantimpacton the mechanicaland corrosion-resistanceproperties of thick-walled superduplexpipe. Sectionsfrom induction bentpipeweresolution annealed at1120 8 Cforv arious periodst osequentiallyeliminated ifferentdeleterious phases.Bycomparing the results of modified DL-EPR analysis,opticalm icroscopy,mechanicaland corrosion testingbeforeand aftert he various heatt reatments,itw as shownthatt he deterioration in propertiesw asduetothe precipitation of a ' .Itwasalsopossible todetermine the orderin which a ' , c 2 and Cr 2 Nhadp recipitated,a nd thus to conclude thatt he unfavourable metallurgyw ast he result of inadequatep ost-bend cooling. Alikelyt hermalh istory fort he pipe isproposed thatleadst othe descriptiono fa modified temperfree process.