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《Journal of Wuhan University of Science and Technology》 2009-05
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Oxide skin structure and thermodynamic analysis of hot-rolled coiled sheet

Ji Xianbin,Yuan Zexi,Song Xinli,Jia Juan(College of Materials Science and Metallurgical Engineering,Wuhan University of Science and Technology,Wuhan 430081,China)  
The increased weight ratio of the hot-rolled coiled sheet sample is measured by electronic analytical balance,and the surface,cross-section morphology,thickness and composition of the oxide scale are observed by optical microscope,scanning electron microscope(SEM) and energy dispersive spectrometer(EDS).It is found that the oxide coating has 3-layer structure(Fe2O3→Fe2O3、Fe3O4→Fe3O→Fe) with rapid cooling.With the extension of the cooling time,it has acquired 2-layer structure(Fe2O3→Fe2O3、Fe3O4→Fe).
【CateGory Index】: TG335.11
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