- Xu Zhanyuan
Xu Zhanyuan
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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Search for this author on this site - OuYang Xuemei
OuYang Xuemei
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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Search for this author on this site - Yin Fucheng
Yin Fucheng
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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Search for this author on this site - Li Zhi
Li Zhi
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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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
TG113.12
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Two vertical sections of the Fe-C-Ta system with 0.1wt.%，0.5wt.% ta were experimentally investigated by DTA, and the phase transformation sequences of the alloys Fe-2.93C-0.1Ta and Fe-2.31C-0.5Ta were analyzed. A thermodynamic calculation of this system was carried out using CALPHAD technique. The results show that the thermodynamically calculated results agree well with the experimental data. There are four nonvariant reactions in the liquidus projection of Fe-C-Ta system in the Fe-rich corner: Liquid bcc ?fcc TaC，Liquid ? bcc Fe2Ta TaC，Liquid ? Fe3C TaC fcc，Liquid Ta2C ? TaC Fe2Ta. The temperature of the nonvariant reactions is as following: 1443.26℃, 1413.90 ℃,1122.42 ℃, 1508.64℃.The eutectoid reaction occurred at 726.6℃of the alloys Fe-2.93C-0.1Ta and Fe-2.31C-0.5Ta.
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[Xu Zhanyuan, OuYang Xuemei, Yin Fucheng, 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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History
- Received:October 16,2014
- Revised:April 16,2015
- Adopted:June 11,2015
- Online: March 16,2017