| 钢渣矿相组成及其显微形貌分析 |
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| 引用本文： | 张玉柱,雷云波,李俊国,邢宏伟,韩志杰,龙跃.钢渣矿相组成及其显微形貌分析[J].冶金分析,2011,31(9):11-17. |
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| 作者姓名： | 张玉柱 雷云波 李俊国 邢宏伟 韩志杰 龙跃 |
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| 作者单位： | 1．河北联合大学冶金与能源学院，河北唐山063009；2．河北钢铁股份有限公司唐山分公司，河北唐山063016 |
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| 基金项目： | 973专项资助项目(2008CB617602); 国家科技支撑计划资助项目(2008BAE67B00) |
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| 摘 要： | 利用X射线衍射法分析了钢渣(缓冷渣、气淬渣、热焖渣)中主要矿物组成，采用金相光学显微镜观察了其各自的显微形貌，并且采用平行截线法分析了具有相同形貌特征相的晶粒度。结果表明，由于化学组成相近，缓冷渣、气淬渣和热焖渣的主要物相均为硅酸二钙、RO相和铁酸钙，以及少量硅酸三钙、f-CaO和f-MgO；在三类钢渣中，C3S为黑色板状晶体，C2S为黑色圆粒状与枝状晶，铁酸钙相多为灰色无定形状，并以连续的形式填充于其他物相中；铁镁相多数呈现白色无定形状，连续延伸于黑色相与灰色相中；高温段冷却强度对钢渣中各类典型矿物晶粒度的影响较大，呈现出冷却强度越高，矿相晶粒度越小的趋势，因此热焖渣矿物晶粒度最大、气淬渣矿物晶粒度最小、缓冷渣矿物晶粒度居中。
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| 关 键 词： | 缓冷渣 气淬渣 热焖渣 显微结构 矿物组成 晶粒度 |
| 收稿时间： | 2011-01-13 |
Analysis of mineralogical composition in steel slag and its microstructure |
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| ZHANG Yu-zhu,LEI Yun-bo,LI Jun-guo,XING Hong-wei,HAN Zhi-jie,LONG Yue.Analysis of mineralogical composition in steel slag and its microstructure[J].Metallurgical Analysis,2011,31(9):11-17. |
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| Authors: | ZHANG Yu-zhu LEI Yun-bo LI Jun-guo XING Hong-wei HAN Zhi-jie LONG Yue |
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| Affiliation: | 1．School of Metallurgy and Energy, Hebei United University, Tangshan 063009, China；2．Tangshan Iron and Steel Co., Ltd., Tangshan 063016，China |
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| Abstract: | Major mineralogical composition in steel slag including slow cooling slag,gas quenching slag and hot stew slag were analyzed respectively by X-ray diffraction.The microstructure of mineralogical phase in these three kinds of steel slag was observed through metallographic optical microscope,and their grain sizes with the same morphological characteristic phase were analyzed by parallel intercept method.The results showed that the main phases in these slags were all dicalcium silicate,RO phase and calcium fer... |
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| Keywords: | slow cooling slag gas quenching slag hot stew slag microstructure mineral composition grain size |
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