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Title: Temperature Evolution During Plane Strain Compression Of Tertiary Oxide Scale On Steel

Abstract

An oxide scale layer always forms at the steel surface during hot rolling. This scale layer separates the work roll from the metal substrate. Understanding the deformation behaviour and mechanical properties of the scale is of great interest because it affects the frictional conditions during hot rolling and the heat-transfer behaviour at the strip-roll interface. A thin wustite scale layer (<20 {mu}m) was created under controlled conditions in an original laboratory device adequately positioned in a compression testing machine to investigate plane strain compression. Oxidation tests were performed on an ULC steel grade. After the oxide growth at 1050 deg. C, plane strain compression (PSC) was performed immediately to simulate the hot rolling process. PSC experiments were performed at a deformation temperature of 1050 deg. C, with reduction ratios from 5 to 70%, and strain rates of 10s-1 under controlled gas atmospheres. Results show that for wustite, ductility is obvious at 1050 deg. C. Even after deformation oxide layers exhibit good adhesion to the substrate and homogeneity over the thickness. The tool/sample temperature difference seems to be the reason for the unexpected ductile behaviour of the scale layer.

Authors:
;  [1]; ;  [2]
  1. Department of Metallurgy and Materials Science, Ghent University, Technologiepark 903, B-9052 Gent (Belgium)
  2. Centre for Research in Metallurgy (CRM), Ghent - Liege (Belgium)
Publication Date:
OSTI Identifier:
21056981
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 907; Journal Issue: 1; Conference: 10. ESAFORM conference on material forming, Zaragoza (Spain), 18-20 Apr 2007; Other Information: DOI: 10.1063/1.2729683; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ADHESION; COMPRESSION; DEFORMATION; DUCTILITY; HEAT TRANSFER; INTERFACES; LAYERS; METALS; OXIDATION; OXIDES; REDUCTION; ROLLING; STEELS; STRAIN RATE; STRAINS; SUBSTRATES; SURFACES; TESTING; THERMAL STRESSES

Citation Formats

Suarez, L., Houbaert, Y., Eynde, X. van den, and Lamberigts, M. Temperature Evolution During Plane Strain Compression Of Tertiary Oxide Scale On Steel. United States: N. p., 2007. Web. doi:10.1063/1.2729683.
Suarez, L., Houbaert, Y., Eynde, X. van den, & Lamberigts, M. Temperature Evolution During Plane Strain Compression Of Tertiary Oxide Scale On Steel. United States. doi:10.1063/1.2729683.
Suarez, L., Houbaert, Y., Eynde, X. van den, and Lamberigts, M. Sat . "Temperature Evolution During Plane Strain Compression Of Tertiary Oxide Scale On Steel". United States. doi:10.1063/1.2729683.
@article{osti_21056981,
title = {Temperature Evolution During Plane Strain Compression Of Tertiary Oxide Scale On Steel},
author = {Suarez, L. and Houbaert, Y. and Eynde, X. van den and Lamberigts, M.},
abstractNote = {An oxide scale layer always forms at the steel surface during hot rolling. This scale layer separates the work roll from the metal substrate. Understanding the deformation behaviour and mechanical properties of the scale is of great interest because it affects the frictional conditions during hot rolling and the heat-transfer behaviour at the strip-roll interface. A thin wustite scale layer (<20 {mu}m) was created under controlled conditions in an original laboratory device adequately positioned in a compression testing machine to investigate plane strain compression. Oxidation tests were performed on an ULC steel grade. After the oxide growth at 1050 deg. C, plane strain compression (PSC) was performed immediately to simulate the hot rolling process. PSC experiments were performed at a deformation temperature of 1050 deg. C, with reduction ratios from 5 to 70%, and strain rates of 10s-1 under controlled gas atmospheres. Results show that for wustite, ductility is obvious at 1050 deg. C. Even after deformation oxide layers exhibit good adhesion to the substrate and homogeneity over the thickness. The tool/sample temperature difference seems to be the reason for the unexpected ductile behaviour of the scale layer.},
doi = {10.1063/1.2729683},
journal = {AIP Conference Proceedings},
number = 1,
volume = 907,
place = {United States},
year = {Sat Apr 07 00:00:00 EDT 2007},
month = {Sat Apr 07 00:00:00 EDT 2007}
}