| EAF-CSP流程V-N微合金钢中第二相的析出 |
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| 引用本文： | 刘清友,杨小军,毛新平,林振源,张立文. EAF-CSP流程V-N微合金钢中第二相的析出[J]. 钢铁, 2007, 42(4): 53-56 |
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| 作者姓名： | 刘清友 杨小军 毛新平 林振源 张立文 |
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| 作者单位： | 钢铁研究总院结构材料研究所,北京,100081;钢铁研究总院结构材料研究所,北京,100081;大连理工大学材料科学与工程系,辽宁,大连,116024;广州珠江钢铁有限公司CSP技术研究所,广东,广州,510730;大连理工大学材料科学与工程系,辽宁,大连,116024 |
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| 摘 要： | 目前,在EAF-CSP流程中通过V-N微合金化技术可成功生产屈服强度为550 MPa的高强度低合金钢.然而,基于热力学平衡考虑,对铸坯中V(C,N)的析出分析存在争议.针对珠钢CSP流程生产的V-N微合金钢,采用物理化学相分析方法、透射电镜的复型分析以及扫描电镜观察了流程中不同阶段试样的V(C,N)析出情况.并通过Thermo-Calc 理论计算,初步探讨了EAF-CSP流程V-N微合金钢中Ti以及Al的析出对V(C,N)析出的影响.
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| 关 键 词： | EAF-CSP V-N微合金钢 相分析 析出 |
| 文章编号： | 0449-749X（2007）04-0053-04 |
| 修稿时间： | 2006-07-03 |
Second Phase Analysis of V-N Microalloy Steel Produced by EAF-CSP |
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| LIU Qing-you,YANG Xiao-jun,MAO Xin-ping,LIN Zhen-yuan,ZHANG Li-wen. Second Phase Analysis of V-N Microalloy Steel Produced by EAF-CSP[J]. Iron & Steel, 2007, 42(4): 53-56 |
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| Authors: | LIU Qing-you YANG Xiao-jun MAO Xin-ping LIN Zhen-yuan ZHANG Li-wen |
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| Affiliation: | 1. Institute for Structural Materials, Central Iron and Steel Research Institute, Beijing 100081, China;2. Department of Material Science and Engineering,Dalian University of Technology, Dalian 116024, Liaoning, China; 3. Institute of CSP Technology,Zhujiang Iron and Steel Co.,Ltd., Guangzhou 510730, Guangdong, China |
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| Abstract: | The V-N microalloy steel with yield strength of 550 MPa is produced by EAF-CSP route.However,based on the thermodynamics,there are different opinious regarding the analysis of V(C,N) particles in the water-quenched continuously cast slab.The physicochemical phase analysis,SEM and TEM analysis were used to observe the precipitates during EAF-CSP process.The effect of Ti and Al on the precipitation of V(C,N) is discussed by use of Thermo-Calc software. |
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| Keywords: | EAF-CSP V-N microalloy steel phase analysis precipitation |
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