| Fe4N及氮在铁基体中的平衡固溶度公式 |
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| 引用本文： | 雍岐龙,陈明昕,赵昆渝,曹建春.Fe4N及氮在铁基体中的平衡固溶度公式[J].特殊钢,2007,28(1):4-6. |
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| 作者姓名： | 雍岐龙 陈明昕 赵昆渝 曹建春 |
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| 作者单位： | 1钢铁研究总院结构材料所，北京100081 ；
2昆明理工大学，昆明650093 |
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| 摘 要： | 根据Thermo-Calc和相关文献的测试数据,推导出Fe4N在奥氏体和铁素体中的平衡固溶度公式分别：logN]γ= 0.940 - 479.4/T, log N]α= 1.074 - 1 838/T。 同时考虑Fe4N的形成自由能而推导出氮(气)在奥氏 体和铁素体中的平衡固溶度公式分别为：logN]γ= -2.752 + 1321/T, logN]α= -1.560-1214/T。
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| 关 键 词： | 氮 平衡固溶度公式 奥氏体 铁素体 |
| 收稿时间： | 2006-06-12 |
| 修稿时间： | 06 12 2006 12:00AM |
Formulae of Equilibrium Solid Solubility of Fe4N and Nitrogen in Iron Matrix |
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| Yong Qilong,Chen Mingxin,Zhao Kunyu,Cao Jianchun.Formulae of Equilibrium Solid Solubility of Fe4N and Nitrogen in Iron Matrix[J].Special Steel,2007,28(1):4-6. |
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| Authors: | Yong Qilong Chen Mingxin Zhao Kunyu Cao Jianchun |
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| Affiliation: | 1 Central Iron and Steel Research Institute, Beijing 100081;
2 Kunming University of Science and Technology, Kunming 650093 |
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| Abstract: | According to measured solubility data of Thermo-Calc and concerned references, the equilibrium solid solubility formulae of Fe4N in austenite and in ferrite have been derived respectively as logN] γ= 0.940 -479.4/T and logN]α= 1.074 - 1 838/T. With considering free energy of Fe4N formation, the equilibrium solid solubility formulae of nitrogen (gas) in austenite and in ferrite have been derived respectively as logN] γ= -2.752 + 1 321/T and logN] α= -1.560-1 214/T. |
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| Keywords: | Fe4N |
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