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| Effect of inclusions on the formation of acicular ferrite in Ti-bearing non quenched-and-tempered steel | |
| 引用本文： | Ying Yang1,2),Chaobin Lai1,3),Fuming Wang1),Zhanbing Yang1),and Bo Song1) 1) Metallurgical and Ecological Engineering School,University of Science and Technology Beijing,Beijing 100083,China 2) Technology Centre,Anshan Iron and Steel Group Corporation,Anshan 114009,China 3) Technology Centre,Xinyu Iron and Steel Group,Xinyu 336501,China. Effect of inclusions on the formation of acicular ferrite in Ti-bearing non quenched-and-tempered steel[J]. 北京科技大学学报(英文版), 2007, 14(6): 501-506. DOI: 10.1016/S1005-8850(07)60117-0 |
| 作者姓名： | Ying Yang1 2) Chaobin Lai1 3) Fuming Wang1) Zhanbing Yang1) and Bo Song1) 1) Metallurgical and Ecological Engineering School University of Science and Technology Beijing Beijing 100083 China 2) Technology Centre Anshan Iron and Steel Group Corporation Anshan 114009 China 3) Technology Centre Xinyu Iron and Steel Group Xinyu 336501 China |
| 作者单位： | Ying Yang1，2)，Chaobin Lai1，3)，Fuming Wang1)，Zhanbing Yang1)，and Bo Song1) 1) Metallurgical and Ecological Engineering School，University of Science and Technology Beijing，Beijing 100083，China 2) Technology Centre，Anshan Iron and Steel Group Corporation，Anshan 114009，China 3) Technology Centre，Xinyu Iron and Steel Group，Xinyu 336501，China |
| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目 |
| 摘 要： | Nucleation of acicular ferrite and its influence factors in non quenched-and-tempered steel was studied by using TEM and thermodynamic calculation. The results show that the complex particles with a center made of Ti oxide, Al2O3, and silicate and an outside made of a small quantity of mixture of TiN and MnS are able to act as ferrite nucleation nuclei. The acicular ferrite percent- age changes little with Ti. When the oxygen content was 80 ppm, the volume percentage of acicular ferrite decreased due to an in- crease in allotriomorphic ferrite. The larger the cooling rate and the shorter the incubation time, the finer the titanium oxide and the higher the nucleation ratio of acicular ferrite. |
| 关 键 词： | 铁氧体 钛元素 淬火 回火技术 |
| 收稿时间： | 6 April 2006. |
Effect of inclusions on the formation of acicular ferrite in Ti-bearing non quenched-and-tempered steel |
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| Ying Yang,Chaobin Lai,Fuming Wang,Zhanbing Yang,Bo Song. Effect of inclusions on the formation of acicular ferrite in Ti-bearing non quenched-and-tempered steel[J]. Journal of University of Science and Technology Beijing, 2007, 14(6): 501-506. DOI: 10.1016/S1005-8850(07)60117-0 | |
| Authors: | Ying Yang Chaobin Lai Fuming Wang Zhanbing Yang Bo Song |
| Affiliation: | 1. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China;Technology Centre, Anshan Iron and Steel Group Corporation, Anshan 114009, China 2. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China;Technology Centre, Xinyu Iron and Steel Group, Xinyu 336501, China 3. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China |
| Abstract: | Nucleation of acicular ferrite and its influence factors in non quenched-and-tempered steel was studied by using TEM and thermodynamic calculation. The results show that the complex particles with a center made of Ti oxide, Al2O3, and silicate and an outside made of a small quantity of mixture of TiN and MnS are able to act as ferrite nucleation nuclei. The acicular ferrite percentage changes little with Ti. When the oxygen content was 80 ppm, the volume percentage of acicular ferrite decreased due to an increase in allotriomorphic ferrite. The larger the cooling rate and the shorter the incubation time, the finer the titanium oxide and the higher the nucleation ratio of acicular ferrite. |
| Keywords: | acicular ferrite titanium inclusions non quenched-and-tempered steel |
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