Experimental Study on Adhesion of Oxide Scale on Hot-Rolled Steel Strip

Xiang Long Yu; Dong Bin Wei; Xiao Dong Wang; Zheng Yi Jiang

doi:10.4028/www.scientific.net/AMR.472-475.622

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 472-475Experimental Study on Adhesion of Oxide Scale on...

Experimental Study on Adhesion of Oxide Scale on Hot-Rolled Steel Strip

Abstract:

An experimental method was developed to study the adherence properties of the oxide scale formed on microalloyed low carbon steel after hot strip rolling. The evolution of the oxide scale during laminar cooling was investigated using Gleeble 3500 Thermal-Mechanical Simulator connected with a humid air generator. After the sample cooled down to ambient temperature, the oxide scale was protected by lacquer to prevent the scale from losing. Physicochemical characteristics of the oxide scale were examined and the adherence mechanism was discussed. Decomposed wustite a mixture of α-iron and magnetite (Fe₃O₄), can substantially improve the integrity of oxide scale. However, large quantities of hematite (Fe₂O₃) or retained wustite (FeO) were found detrimental to the adhesion of the oxide scale. It is found that the adherence of oxide scales significantly depends on the phase composition of oxide scales with different thickness.

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Advanced Manufacturing Technology, ICMSE 2012

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Periodical:

Advanced Materials Research (Volumes 472-475)

Pages:

622-625

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.472-475.622

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Online since:

February 2012

Authors:

Xiang Long Yu, Dong Bin Wei, Xiao Dong Wang, Zheng Yi Jiang

Keywords:

Adherence Properties, Hot-Rolled Steel Strip, Oxide Scale, Phase Composition

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References

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