| Fe-C-Ta三元系相关系的实验测定与热力学计算 |
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| 引用本文： | 徐展源,欧阳雪枚,尹付成,李智.Fe-C-Ta三元系相关系的实验测定与热力学计算[J].稀有金属材料与工程,2017,46(1):97-103. |
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| 作者姓名： | 徐展源 欧阳雪枚 尹付成 李智 |
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| 作者单位： | School of Materials Science and Engineering, Xiangtan University；Key Laboratory of Materials Design and Preparation Technology of Hunan Province, Xiangtan University,School of Materials Science and Engineering, Xiangtan University；Key Laboratory of Materials Design and Preparation Technology of Hunan Province, Xiangtan University,School of Materials Science and Engineering, Xiangtan University；Key Laboratory of Materials Design and Preparation Technology of Hunan Province, Xiangtan University,School of Materials Science and Engineering, Xiangtan University；Key Laboratory of Materials Design and Preparation Technology of Hunan Province, Xiangtan University |
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| 基金项目： | 国家自然科学基金项目（面上项目） |
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| 摘 要： | 采用差热分析(DTA)测定了Fe-C-Ta三元系中Fe-XC-0.1Ta和Fe-XC-0.5Ta 2个垂直截面,并选取Fe-2.93C-0.1Ta和Fe-2.31C-0.5Ta 2种合金,对其相变过程进行了分析。利用CALPHAD方法,并结合实验数据对该体系的相关系进行了热力学优化。结果表明,计算结果与实验结果符合较好。该体系富铁角的液相面投影存在4个四相恒温反应:Liquid+bcc?fcc+Ta C,Liquid?bcc+Fe_2Ta+Ta C,Liquid?Fe_3C+Ta C+fcc,Liquid+Ta_2C?Ta C+Fe_2Ta,反应温度分别为1443.26、1413.90、1122.42及1508.64℃。Fe-XC-0.1Ta合金和Fe-XC-0.5Ta合金在726.6℃发生共析反应。
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| 关 键 词： | Fe-C-Ta 差热分析 相图 CALPHAD |
| 收稿时间： | 2014/10/16 0:00:00 |
| 修稿时间： | 2015/4/16 0:00:00 |
Experimental investigation and Thermodynamic calculation of the Fe-C-Ta system |
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| Xu Zhanyuan,OuYang Xuemei,Yin Fucheng and Li Zhi.Experimental investigation and Thermodynamic calculation of the Fe-C-Ta system[J].Rare Metal Materials and Engineering,2017,46(1):97-103. |
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| Authors: | Xu Zhanyuan OuYang Xuemei Yin Fucheng and Li Zhi |
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| Abstract: | |
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| Keywords: | Fe-C-Ta DTA phase diagram CALPHAD |
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