Cold rolling texture development of alpha/gamma duplex stainless steels

The cold rolling texture development of two alpha/gamma duplex stainless steels (DSS) with similar volume fractions of both phases but with totally different microstructures were investigated. Due to the limited number of available pole figures using X-rays, for the calculation of the ODFs bath a direct method and a recent iterative series expansion method were used. The results were checked by neutron diffraction measurements, The austenitic phases of both DSS behave similarly to single phase materials with a low stacking fault energy which develop a brass-type rolling texture, in contrast, the texture development of the ferritic phases strongly differs from those of single phase ferrites. Instead of a fibre type texture the alpha-phase in both DSS exhibits a peak dominated texture regardless of whether it is the matrix phase or not. These differences, as well as the sharpness of both phases, are explained by the presence of the second phase.