| CSP线热轧薄板的组织演变及微观取向研究 |
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| 引用本文： | 于浩,康永林,傅杰,柳得橹,王中丙,李烈军,范胜标,陈贵江,李柯新. CSP线热轧薄板的组织演变及微观取向研究[J]. 钢铁, 2002, 37(10): 38-42 |
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| 作者姓名： | 于浩 康永林 傅杰 柳得橹 王中丙 李烈军 范胜标 陈贵江 李柯新 |
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| 作者单位： | 1. 北京科技大学
2. 广州珠江钢铁有限责任公司 |
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| 基金项目： | 国家新一代钢铁材料重大基础研究资助项目 ( G19980 6 15 0 0 ) |
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| 摘 要： | 利用背电子散射衍射（EBSD）技术，研究了3种不同厚度规格的低碳钢CSP热轧薄板的组织演变和微观取向，实验结果表明：热轧终轧组织为再结晶奥氏体和变形奥氏体的混合体；相变后的铁素体晶粒中含有亚晶和位错，导致板带的强度升高而伸长率下降。板带的最终组织中含有残留的热轧织构，织构组分较杂且弱。最终组织中的铁素体晶粒尺寸不均匀，由EBSD系统按邻域面积确定的铁素体晶粒尺寸比按形貌确定的铁素体晶粒尺寸小。
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| 关 键 词： | 热轧薄板 CSP 背电子散射衍射 微观组织 织构 |
MICROSTRUCTURE EVOLUTION AND TEXTURE OF CSP HOT ROLLED STRIP |
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| YU Hao KANG Yonglin FU Jie LIU Delu. MICROSTRUCTURE EVOLUTION AND TEXTURE OF CSP HOT ROLLED STRIP[J]. Iron & Steel, 2002, 37(10): 38-42 |
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| Authors: | YU Hao KANG Yonglin FU Jie LIU Delu |
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| Abstract: | The microstructure evolution and texture of CSP hot rolled strip were analyzed using electron back scattered diffraction (EBSD) method. The experimental results showed that the microstructrue in hot rolled strip is a mixture of recrystallized and deformed austenite. After phase transformation, the ferrite is embodied with substructures and dislocations, which leads to higher strength and lower elongation rate. The retained hot rolling structure and weak texture in final strip product are observed. The size of ferrite particles is non-uniform and the size determined by EBSD is finer than that determined by morphometric method. |
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| Keywords: | CSP electron back scattered diffraction microstructure texture |
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