| X80管线钢中氮化物和碳化物析出热力学分析 |
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| 引用本文： | 杨进玲,彭其春,邹 健,周明伟,彭明耀,毕建民. X80管线钢中氮化物和碳化物析出热力学分析[J]. 武汉科技大学学报, 2013, 36(6): 406-410 |
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| 作者姓名： | 杨进玲 彭其春 邹 健 周明伟 彭明耀 毕建民 |
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| 作者单位： | 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北 武汉,430081;武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北 武汉,430081;武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北 武汉,430081;湖南华菱涟源钢铁公司,湖南 娄底,417009;湖南华菱涟源钢铁公司,湖南 娄底,417009;湖南华菱涟源钢铁公司,湖南 娄底,417009 |
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| 摘 要： | 基于规则熔体理论和平衡反应基础,对连铸工序X80管线钢中碳化物、氮化物析出进行热力学分析,研究Ti、Nb及Al的碳化物、氮化物析出规律。结果表明,固液两相区,TiC0.005N0.995和TiN分别在1785K和1784K时开始析出;奥氏体相区,碳化物、氮化物析出先后顺序为NbC0.64N0.36、NbC、NbN、AlN、TiC,相应析出温度为1457、1404、1354、1267、1226K;γ→α相变过程中,TiC发生相间析出,Nb主要以NbC形式析出,AlN析出量较少。
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| 关 键 词： | X80管线钢 碳氮化物 析出 热力学 |
| 收稿时间： | 2013-07-22 |
Thermodynamic analysis of carbide and nitride precipitation in X80pipeline steel |
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| Yang Jinling,Peng Qichun,Zou Jian,Zhou Mingwei,Peng Mingyao and Bi Jianmin. Thermodynamic analysis of carbide and nitride precipitation in X80pipeline steel[J]. Journal of Wuhan University of Science and Technology, 2013, 36(6): 406-410 |
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| Authors: | Yang Jinling Peng Qichun Zou Jian Zhou Mingwei Peng Mingyao Bi Jianmin |
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| Affiliation: | Yang Jinling;Peng Qichun;Zou Jian;Zhou Mingwei;Peng Mingyao;Bi Jianmin;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology;Hunan Valin Lianyuan Iron and Steel Corporation; |
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| Abstract: | Based on the regular solution theory and equilibrium reaction, the precipitation of carbides and nitrides in X80pipeline steel are thermodynamically analyzed and the precipitation condition and amount of Ti, Nb and Al precipitates are investigated. The results show that, TiC0.005N0.0095and TiN start to precipitate respectively at the temperatures of 1785K and 1784K in solid-liquid two-phase region; NbC0.64N0.36, NbC, NbN, AlN and TiC start to precipitate respectively at the temperatures of 1457,4, 1354,7K and 1226K; in the austenite to ferrite phase transition process, interphase precipitation of TiC will occur ; Nb element mainly precipitates in the form of NbC; and the precipitation amount of AlN is insignificant. |
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| Keywords: | X80pipeline steel carbonitride precipitation thermodynamics |
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