4.7 Article

Microstructure characterization based on the type of deformed grains in cold-rolled, Cu-added, bake-hardenable steel

Journal

MATERIALS CHARACTERIZATION
Volume 92, Issue -, Pages 159-170

Publisher

ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2014.03.009

Keywords

EBSD; Cold-rolled; Bake-hardenable; Steel; Stored energy

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The electron backscatter diffraction technique has been used to characterize the microstructure of deformed grains in cold-rolled, Cu-added, bake-hardenable steel. A new scheme based on the kind and number of average orientations, as determined from a unique grain map of the deformed grains, was developed in order to classify deformed grains by type. The a-fiber components, gamma-fiber components and random orientations, those which could not be assigned to either gamma-fiber or alpha-fiber components, were used to define the average orientation of unique grains within individual deformed grains. The microstructures of deformed grains in as-rolled specimens were analyzed based on the Taylor factor, stored energy, and misorientation. The relative levels and distributions of the Taylor factor, the stored energy and the misorientation were examined in terms of the types of deformed grains. (c) 2014 Elsevier Inc. All rights reserved.

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