A Comparison of Texture Development in an Experimental and Industrial Tertiary Oxide Scale in a Hot Strip Mill

Yu, X; Jiang, Z; Zhao, J; Wei, D; Zhou, J; Zhou, C; Huang, Q

A Comparison of Texture Development in an Experimental and Industrial Tertiary Oxide Scale in a Hot Strip Mill

Yu, X Jiang, Z Zhao, J Wei, D

Zhou, J Zhou, C Huang, Q

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Publication Type:: Journal Article
Citation:: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, 2015, 46 (6), pp. 2503 - 2513
Issue Date:: 2015-08-25

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Field	Value	Language
dc.contributor.author	Yu, X	en_US
dc.contributor.author	Jiang, Z	en_US
dc.contributor.author	Zhao, J	en_US
dc.contributor.author	Wei, D https://orcid.org/0000-0002-4247-8905	en_US
dc.contributor.author	Zhou, J	en_US
dc.contributor.author	Zhou, C	en_US
dc.contributor.author	Huang, Q	en_US
dc.date.issued	2015-08-25	en_US
dc.identifier.citation	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, 2015, 46 (6), pp. 2503 - 2513	en_US
dc.identifier.issn	1073-5615	en_US
dc.identifier.uri	http://hdl.handle.net/10453/41501
dc.description.abstract	© 2015, The Minerals, Metals & Materials Society and ASM International. Electron backscatter diffraction (EBSD) has been used to investigate the microstructure and texture-based features of an industrial tertiary oxide scale formed on a micro-alloyed low-carbon steel from a hot strip mill. EBSD-derived maps demonstrate that the oxide scale consists primarily of magnetite (Fe3O4) with a small amount of hematite (α-Fe2O3) which scatters near the surface, at the oxide/steel interface and at the cracking edges. The results extracted from these maps reveal that there is a significant difference between the industrial and the laboratory oxide scales in their grain boundaries, phase boundaries, and texture evolutions. There are high proportions of special coincidence site lattice boundaries Σ3 and Σ13b in the magnetite of the industrial oxide scale, rather than the lower orders of Σ5, Σ7, and Σ17b, which develop in the experimental oxide scale. Within the phase boundaries, the orientation relationships between the magnetite and the hematite correspond to the matching planes and directions {111}Fe3O4\|\|{0001}α-Fe2O3 and {110}Fe3O4\|\|{110}α-Fe2O3. Magnetite in both of these oxide scales develops a relatively weak {001} fiber texture component including a strong {001}〈100〉 cube and a slightly strong {100}〈210〉 texture components. Unlike the {001}〈110〉 rotated cube component in the experimental oxide scale, the magnetite in the industrial tertiary oxide scale develops a strong {112}〈110〉 and a relatively strong {113}〈110〉 and {111}〈110〉 texture components. These findings have the potential to provide a convincing step forward for oxidation research.	en_US
dc.relation.ispartof	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science	en_US
dc.relation.isbasedon	10.1007/s11663-015-0443-6	en_US
dc.subject.classification	Mining & Metallurgy	en_US
dc.title	A Comparison of Texture Development in an Experimental and Industrial Tertiary Oxide Scale in a Hot Strip Mill	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.citation.volume	46	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	en_US
utslib.for	0904 Chemical Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access
pubs.issue	6	en_US
pubs.publication-status	Published	en_US
pubs.volume	46	en_US

Abstract:

© 2015, The Minerals, Metals & Materials Society and ASM International. Electron backscatter diffraction (EBSD) has been used to investigate the microstructure and texture-based features of an industrial tertiary oxide scale formed on a micro-alloyed low-carbon steel from a hot strip mill. EBSD-derived maps demonstrate that the oxide scale consists primarily of magnetite (Fe3O4) with a small amount of hematite (α-Fe2O3) which scatters near the surface, at the oxide/steel interface and at the cracking edges. The results extracted from these maps reveal that there is a significant difference between the industrial and the laboratory oxide scales in their grain boundaries, phase boundaries, and texture evolutions. There are high proportions of special coincidence site lattice boundaries Σ3 and Σ13b in the magnetite of the industrial oxide scale, rather than the lower orders of Σ5, Σ7, and Σ17b, which develop in the experimental oxide scale. Within the phase boundaries, the orientation relationships between the magnetite and the hematite correspond to the matching planes and directions {111}Fe3O4||{0001}α-Fe2O3 and {110}Fe3O4||{110}α-Fe2O3. Magnetite in both of these oxide scales develops a relatively weak {001} fiber texture component including a strong {001}〈100〉 cube and a slightly strong {100}〈210〉 texture components. Unlike the {001}〈110〉 rotated cube component in the experimental oxide scale, the magnetite in the industrial tertiary oxide scale develops a strong {112}〈110〉 and a relatively strong {113}〈110〉 and {111}〈110〉 texture components. These findings have the potential to provide a convincing step forward for oxidation research.

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http://hdl.handle.net/10453/41501