Título

THE SURFACE REARRANGEMENT DURING WÜSTITE REDUCTION WITHIN ITS EXISTENCE

THE SURFACE REARRANGEMENT DURING WÜSTITE REDUCTION WITHIN ITS EXISTENCE

Autoria

SASAKI, YASUSHI; BAHGAT, SADDIK MOHAMED; ISHII, KUNIYOSHI

SASAKI, YASUSHI

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BAHGAT, SADDIK MOHAMED

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ISHII, KUNIYOSHI

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DOI

10.5151/2594-357x-34Red-705-714

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Resumo

Development of the surface rearrangement during the wüstite reduction within its range of existence was investigated. The surface orientation of each grain before and after the surface rearrangement was determined by Electron Back Scattering Diffraction (EBSD) measurement and the change of surface morphology was examined by FE-SEM. Based on measured EBSD patterns, the rearranged surfaces were found to be mainly consisted of the combination of the singular planes of {100} and {111} depended on the initial grain orientations. The shape of the rearranged surfaces developed from initial (hkℓ) plane was found to reflect a particular part of the equilibrium shape polyhedron of simple FCC crystal separated by the (hkℓ) plane.

Development of the surface rearrangement during the wüstite reduction within its range of existence was investigated. The surface orientation of each grain before and after the surface rearrangement was determined by Electron Back Scattering Diffraction (EBSD) measurement and the change of surface morphology was examined by FE-SEM. Based on measured EBSD patterns, the rearranged surfaces were found to be mainly consisted of the combination of the singular planes of {100} and {111} depended on the initial grain orientations. The shape of the rearranged surfaces developed from initial (hkℓ) plane was found to reflect a particular part of the equilibrium shape polyhedron of simple FCC crystal separated by the (hkℓ) plane.

Palavras-chave

wüstite reduction, surface rearrangement, grain orientation, EBSD, FCC crystal

wüstite reduction, surface rearrangement, grain orientation, EBSD, FCC crystal