• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Processing amp; Manufacturing of Advanced Materials Pt.2; Jul 7-11, 2003; Leganes, Madrid, Spain >The Dependence of Activity Coefficient on Intensive Thermodynamic Parameters in a Liquid Fe-N-V Alloy
【24h】

The Dependence of Activity Coefficient on Intensive Thermodynamic Parameters in a Liquid Fe-N-V Alloy

机译：液态Fe-N-V合金中活度系数与强度热力学参数的关系

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The article presents the methodology and results of experimental studies on the solubility of nitrogen in liquid Fe―V alloys. Tests were carried out using the levitation metal melting technique. Liquid alloys of Fe-V ([%V]_(wt.%) 1.5; 2.5; 4,0; 5.8; 7.8; 12.2; 45%) were saturated with nitrogen at temperatures of 2073, 2173, 2273 K. The partial pressure of nitrogen was varied in the range 0.001-2.5 MPa. The experiment involved melting a 1 g specimen in an electromagnetic field generated by a levitation coil, filling the reaction chamber with nitrogen up to the required pressure and heating the specimen up to a preset temperature. High nitrogen concentrations were obtained in the samples due to the formation of high nitrogen partial pressures in the gaseous phase in the reaction chamber. In such conditions, all interactions of nitrogen in the alloy tested could be disclosed, namely: nitrogen-vanadium, nitrogen-nitrogen, and nitrogen-nitrogen-vanadium interactions. The results of the tests showed a nonlinear dependence of the activity coefficient, f_N, not only on vanadium content in the alloy, but also on nitrogen content in it. Using the experimental data and the findings of the previous study on the liquid Fe-N alloy, temperature relationships of inter- and self-reaction parameters have been determined.
机译：本文介绍了氮在液态Fe-V合金中的溶解度的方法和实验研究结果。使用悬浮金属熔化技术进行测试。 Fe-V（[％V] _（wt。％）1.5; 2.5; 4,0; 5.8; 7.8; 12.2; 45％）的液态合金在2073、2173、2273 K的温度下用氮气饱和。氮气的压力在0.001-2.5MPa的范围内变化。实验涉及在悬浮线圈产生的电磁场中熔化1 g样品，向反应室中充入氮气至所需压力，然后将样品加热至预设温度。由于在反应室中在气相中形成了高氮分压，因此在样品中获得了高氮浓度。在这样的条件下，可以揭示测试合金中氮的所有相互作用，即：氮-钒，氮-氮和氮-氮-钒的相互作用。测试结果表明，活度系数f_N不仅与合金中的钒含量呈非线性关系，而且与合金中的氮含量呈非线性关系。利用实验数据和先前关于液态Fe-N合金的研究发现，确定了相互反应参数和自反应参数的温度关系。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号