Influence of ageing on the texture development of tensile-deformed duplex steel

Abstract

Remanit dual-phase stainless steel in the annealed state was studied after 20% tensile deformation in 0, 45 and 90 ° with respect to the rolling direction and subsequent ageing at 475 and 850 °C for 3 h, and water quenched for texture development in ferrite and austenite phases by ODF analysis. It is concluded that 20% tensile deformation leads to deformation of both ferrite and austenite phases. The degree of deformation of the respective phases is dependent upon the deformation direction. Furthermore, the texture for the ferrite phase changes distinctly after ageing at 475 or 850 °C, but the texture for the austenite phase remains unaffected. Thus it may be concluded that ageing treatment leads to change predominantly of the ferrite phase.