| 合金化热镀锌IF钢表面亮条纹缺陷分析 |
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| 引用本文： | 金鑫焱,刘昕,钱洪卫.合金化热镀锌IF钢表面亮条纹缺陷分析[J].理化检验(物理分册),2008,44(12):698-701. |
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| 作者姓名： | 金鑫焱 刘昕 钱洪卫 |
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| 作者单位： | 金鑫焱,刘昕,JIN Xin-yan,LIU xin(宝钢研究院汽车用钢研究所,上海,201900);钱洪卫,QIAN Hong-wei(宝钢分公司冷轧厂,上海,201900) |
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| 摘 要： | 利用光学显微镜、扫描电镜和能谱分析仪分析了合金化热镀锌IF钢板表面的亮条纹缺陷。条纹部位与正常部位相比，镀层的表面形貌、截面特征以及侵蚀锌层后的钢板表面形貌均有不同。造成条纹的直接原因是钢板表面的微裂纹，而引起微裂纹的原因是Al2O3颗粒。
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| 关 键 词： | 合金化热镀锌 IF钢 亮条纹 Al2O3 微裂纹 |
INVESTIGATION OF BRIGHT STREAK ON THE COATING SURFACE OF HOT-DIP GALVANNEALED IF STEEL |
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| JIN Xin-yan,LIU xin,QIAN Hong-wei.INVESTIGATION OF BRIGHT STREAK ON THE COATING SURFACE OF HOT-DIP GALVANNEALED IF STEEL[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2008,44(12):698-701. |
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| Authors: | JIN Xin-yan LIU xin QIAN Hong-wei |
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| Affiliation: | JIN Xin-yan, LIU Xin ,QIAN Hong-wei(Auto Steel Div. , Baosteel Research Institute, Shanghai 201900, China;Cold Rolling Plant, Baosteel Branch, Shanghai 201900, China) |
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| Abstract: | To improve the surface quality of hot-dip galvannealed IF steel in industrial continuous galvanizing line, the morphology and formation mechanism of a bright streak have been investigated by optical microscopy, scanning electron microscopy and energy dispersive spectrometer. The coating morphology, cross-section and the substrate morphology after removing the zinc coating are different between the streak site and the normal site. It is obvious that the streak is caused by the micro-cracks in the surface and subsurface of the substrate. And the microcracks are caused by Al2O3. |
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| Keywords: | Al2O3 |
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