Abstract
Abstract The effects of post-recrystallization strains of 2% and 7% on the microtexture and grain misorientation texture of an austenitic stainless steel are investigated. The time to onset of grain growth is decreased by two to three orders of magnitude after the additional strain. An electron back-scattering technique is used to collect grain orientations as a function of strain and post-strain annealing time and the results show that the proportions of coincident site lattice (CSL) boundaries increase during the post-strain anneals. Most of the CSLs are potentially ‘special’ types and tend to occur in clusters, with an increased tendency for clustering as the end of the grain growth incubation period is approached. It is therefore proposed that special boundary clustering is instrumental in the initiation of anomalous grain growth.
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