EBSD Study of Grain Boundary Evolution after Different Cold Rolling Reduction in Duplex Steel
The microstructure evolution of a two-phase austenitic-ferritic steel after hot rolling and cold rolling (reduction amounts: 20, 40, 60 and 80%) is investigated with the help of the FEG-SEM / EBSD technique. Special phases orientation relationships (Bain, K-S, N-W and G-T) evolution between neighbouring grains of and phases have been characterised as a function of the cold rolling reduction. As this later increases fraction of these particular phase orientation relationships decrease. The same evolution is noticed for the 3 grain boundaries inside the phase. These results are compared to those observed by TEM.
Luís Guerra ROSA and Fernanda MARGARIDO
F. Brisset et al., "EBSD Study of Grain Boundary Evolution after Different Cold Rolling Reduction in Duplex Steel", Materials Science Forum, Vols. 636-637, pp. 504-510, 2010