Evaluation of Surface Damage of Pd Using Cross-Sectional Electron Backscatter Diffraction Analysis

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Abstract

<p>Surface damage induced by mechanical polishing of cold-rolled and annealed Pd specimens was examined by cross-sectional electron backscatter diffraction (EBSD) measurements. Fine grains with high-angle grain boundaries were detected in the outermost layer in both specimens. Less granular but layered gradation of crystallographic orientation was detected in the sub-surface layer of the annealed specimen. In the cold-rolled specimen, a lot of elongated grains were detected in the entire inner layer. The formation of the sub-surface layer seemed to be prevented in the cold-rolled specimen by pre-introduced microstructures. In the annealed specimen, the depth of the surface damage layer was dependent on the crystallographic orientation of the matrix grain. This study clearly demonstrated the application of cross-sectional EBSD analysis for evaluating surface damage in metallic materials.</p>

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 62 (1), 41-47, 2021-01-01

    The Japan Institute of Metals and Materials

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