X-ray analysis of stress distribution in ferrite and austenite of duplex steel during tensile loading

Abstract

One of characteristic feature of stress determination by X-ray diffraction technique is the possibility to analyze stress state in individual phases of a multiphase material. Duplex steel widely used in chemistry and oil refinery equipments is an example ofthis kind multiphase material consisting fapproximately equal quantities offerrite and austenite. These phases have different mechanical properties that cause a different stress distribution under loading. In the present paper mechanical behavior ofa duplex steel and their ferrite and austemte phases have been studied by X-ray diffraction technique. Stress distribution has been analyzed both in elastic and plastic region.