Title: Deformation of oxide scale and surface roughness transfer during hot rolling of stainless steel 304L

Authors: Dongbin Wei, Junxia Huang, Aiwen Zhang, Zhengyi Jiang, A. Kiet Tieu, Fei Wu, Xu Shi, Sihai Jiao

Addresses: School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia. ' Research Institute (R&D Center), Baoshan Iron & Steel Co., Ltd., Shanghai 200431, China. ' Metallurgical Process Department, Research Institute (R&D Center), Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China. ' School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia. ' School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia. ' School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia. ' Metallurgical Process Department, Research Institute (R&D Center), Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China. ' Metallurgical Process Department, Research Institute (R&D Center), Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China

Abstract: The oxidation characteristic of stainless steel 304L in humid air and the deformation behaviour of the oxide scale during hot rolling at 1050°C were investigated. The surface roughness transfer during hot rolling was discussed. With an increase of reduction, the oxide scale thickness decreases linearly, the surface roughness also decreases obviously and the integrity of oxide scale increases. The thickness decrease of thick oxide scale is more rapid than a thin oxide scale. The surface roughness always decreases with an increase of reduction, and the oxide scale thickness affects the surface roughness transfer during hot rolling.

Keywords: stainless steel; hot rolling; oxide scale; surface roughness; humidity; deformation.

DOI: 10.1504/IJSURFSE.2009.029141

International Journal of Surface Science and Engineering, 2009 Vol.3 No.5/6, pp.459 - 470

Available online: 06 Nov 2009 *

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