| 基于3D-CAFE模型研究过冷度对430铁素体不锈钢凝固组织的影响 |
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| 引用本文： | 庞瑞朋,王福明,李长荣.基于3D-CAFE模型研究过冷度对430铁素体不锈钢凝固组织的影响[J].热加工工艺,2013,42(5):58-61,65. |
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| 作者姓名： | 庞瑞朋 王福明 李长荣 |
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| 作者单位： | 1. 北京科技大学高效钢铁冶金国家重点实验室,北京100083;北京科技大学冶金与生态工程学院,北京100083
2. 北京科技大学材料科学与工程学院,北京,100083 |
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| 摘 要： | 用3D-CAFE模型模拟了430铁素体不锈钢的凝固组织,研究了体形核最大过冷度对凝固组织的影响,而它的最大过冷度从2.20K以0.05K为间隔递增到3.35K.模拟结果表明,随着体形核最大过冷度增加,柱状晶区比例增加,等轴晶区比例减小,且外面激冷层细小等轴晶区和被拉长等轴晶区比例缩小.同时进行了430铁素体不锈钢的实验室凝固组织的研究,试验结果表明,在液相线温度下随炉空冷铸坯的凝固组织几乎都是球形等轴晶.实验与3D-CAFE模拟结果相吻合,说明3D-CAFE模型能为实验研究CET转变过程起到指导作用.
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| 关 键 词： | 3D-CAFE 凝固组织 CET |
Study on Effect of Degree of Supercooling on Solidification Structure of 430 Ferritic Stainless Steel Based on 3D-CAFE Model |
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| PANG Ruipeng
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WANG Fuming
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LI Changrong.Study on Effect of Degree of Supercooling on Solidification Structure of 430 Ferritic Stainless Steel Based on 3D-CAFE Model[J].Hot Working Technology,2013,42(5):58-61,65. |
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| Authors: | PANG Ruipeng WANG Fuming LI Changrong |
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| Affiliation: | 1.State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China; 2.School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China; 3.School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China) |
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