| 卷曲后供氧差异对热轧带钢氧化皮组织及耐蚀性的影响 |
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| 引用本文： | 顾其德,董超芳,李晓刚,齐慧滨,肖葵,骆鸿.卷曲后供氧差异对热轧带钢氧化皮组织及耐蚀性的影响[J].北京科技大学学报,2009,31(12). |
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| 作者姓名： | 顾其德 董超芳 李晓刚 齐慧滨 肖葵 骆鸿 |
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| 作者单位： | 1. 北京科技大学腐蚀与防护中心,北京,100083
2. 宝钢技术研究院焊接与表面技术研究所,上海,201900 |
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| 基金项目： | 国家基础条件平台建设资助项目 |
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| 摘 要： | 采用扫描电子显微镜(SEM)、X射线衍射仪、盐雾实验和电化学极化方法,研究了SS400热轧带钢沿宽度方向不同位置氧化皮的组织、结构及其耐蚀性. 结果表明,SS400边部取样位置的氧化皮厚度最厚且比较均匀,结构致密,存在明显的Fe_3O_4/Fe共析组织. SS400边部和板宽1/4处的成分主要为Fe_3O_4、Fe_2O_3和Fe,板宽中心位置的成分主要为Fe3O4和Fe. 盐雾腐蚀实验表明,SS400边部腐蚀最轻,板宽1/4处次之,板宽中心位置腐蚀最为严重. 动电位极化曲线测试结果显示,SS400边部的腐蚀电位明显高于其他两个位置,腐蚀电流最小. 热轧带钢在卷曲后,由于带钢沿宽度方向不同位置的供氧差异,会导致氧化皮组织、结构的显著不同,进而影响氧化皮的耐蚀性.
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| 关 键 词： | 热轧带钢 氧化皮 组织结构 耐蚀性 |
Corrosion behavior and structure of oxide scales formed on hot rolled strips after coiling with different oxygen supplies |
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| GU Qi-de,DONG Chao-fang,LI Xiao-gang,QI Hui-bin,XIAO Kui,LUO Hong.Corrosion behavior and structure of oxide scales formed on hot rolled strips after coiling with different oxygen supplies[J].Journal of University of Science and Technology Beijing,2009,31(12). |
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| Authors: | GU Qi-de DONG Chao-fang LI Xiao-gang QI Hui-bin XIAO Kui LUO Hong |
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| Institution: | GU Qi-de1),DONG Chao-fang1),LI Xiao-gang1),QI Hui-bin2),XIAO Kui1),LUO Hong1)1)Corrosion & Protection Center,University of Science , Technology Beijing,Beijing 100083,China2)Institute of Welding , Surface Technology,Baoshan Iron , Steel Institute of Technology,Shanghai 201900,China |
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| Abstract: | The structure of oxide scales and corrosion resistance of SS400 hot-rolled strips at different positions in plate width were studied by scanning electron microscopy(SEM),X-ray diffraction quantitative analysis,salt spray test and electrochemical methods.The results show that oxide scales at the plate edge are the thickest,relatively uniform and compact,and there is obvious magnetite/iron eutectoid in them.Oxide scales at the edge and one-fourth of plate width mainly consist of magnetite,hematite and magneti... |
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| Keywords: | hot rolled strip oxide scale microstructure corrosion behavior |
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