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In this paper, the role of misorientation angle and coincident site lattice (CSL) boundaries in promoting Goss-textured abnormal grain growth (AGG) in polycrystalline (Fe81Ga19)+1.0 mol % NbC rolled sheet is investigated through electron backscattering diffraction (EBSD) patterns captured by orientation imaging microscopy. Data on the magnetostrictive variation as a function of annealing time under an argon atmosphere are presented along with the area fraction of grains, average grain size, and grain boundary character distributions (GBCD). The GBCD results are used to show changes in the CSL boundary distribution are too small to explain the observed Goss-textured AGG. Finally, GBCD results are presented that support the high energy grain boundary model as suitable for explaining Goss-textured AGG in polycrystalline (Fe81Ga19)+1.0 mol % NbC rolled sheet.
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Chun et al. (2010) studied this question.
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