Abstract
The microstructure and texture of a Grade 91 (Fe-9Cr) alloy, which were subjected to high-pressure torsion (HPT) and annealing at 600 °C, were investigated. The HPT significantly refined the grain size, and generated typical body-centered cubic (bcc) torsion textures, including J{110}<211>, D{112}<111> and E{011}<111>. During annealing, grains grew, and J became the most important texture component. Grains orientated in J showed increased number density and larger average grain sizes in the annealed microstructure. The dominance of J can be explained based on the stored energy and grain boundary characteristics of the J grains.
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