Effect of coiling temperature on oxide scale of hot-rolled strip

被引：12
|
作者：
Yu, Xianglong [1 ]
Jiang, Zhengyi [1 ]
Wang, Xiaodong [1 ,2 ]
Wei, Dongbin [1 ]
Yang, Quan [3 ]
机构：
[1] Univ Wollongong, Sch Mech Mat & Mechatron Engn, Wollongong, NSW 2522, Australia
[2] Shougang Grp, Shougang Res Inst Technol, Beijing 100043, Peoples R China
[3] Univ Sci & Technol Beijing, Engn Res Inst, Beijing 100083, Peoples R China
来源：
ADVANCED MATERIALS, PTS 1-3 | 2012年 / 415-417卷
关键词：
Oxide scale; hot-rolled strip; coiling temperature; phase composition; LOW-CARBON STEEL; SURFACE-ROUGHNESS; OXIDATION; GROWTH; IRON; AIR;
D O I：
10.4028/www.scientific.net/AMR.415-417.853
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of the coiling temperature, ranging from 550 to 570 degrees C, on the morphology and the phase composition of the oxide scale formed on the microalloyed low carbon steel for automobiles after hot strip rolling was investigated. Physicochemical characteristics of the oxide scales were examined and their formation mechanism was discussed. Thickness of the oxide scale is in the range of 8-11 mu m and decreases with a decrease of coiling temperature. The microstructure and phase composition, XRD analysis shows a large amount of magnetite (Fe3O4) and some sparse hematite (Fe2O3) exist on the surface of hot rolled strip when the coiling temperature reduces from 570 to 550 degrees C. The coiling temperature substantially affects the internal microstructure and magnetite phase.
引用
收藏
页码：853 / +
页数：2
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