刘文娟,朱荣,白瑞国,马瑞峰,李东明,王饶

• 1:北京科技大学冶金与生态工程学院
• 2:河北钢铁股份有限公司承钢分公司

摘要(Abstract)：

采用FactSage软件对液相渗氮法制备含氮钒铁合金反应体系的热力学进行研究。计算结果表明,在1823 K温度下,FeV50合金中N元素含量可达到最高,质量浓度为10.64%,并且可剩余34 mol%左右的液相,1823~1873 K为FeV50液相渗氮的最佳温度,在此温度下,钒优先与氮结合生成V13N6相,然后生成VN相。在热力学计算的基础上,以FeV50合金为原料进行1873~1923 K下管式炉高温渗氮实验,制备出氮含量最高为4.34%的含氮钒铁合金。XRD和SEM分析显示含氮钒铁合金中主要相组成为V,Fe,V2N,VN,V5O9和SiO2,氮化物以V2N和VN的形式均匀分布在富钒相中。实验证明利用液相渗氮法生产含氮钒铁具有可行性。

关键词(KeyWords)： 液相渗氮;含氮钒铁;FeV50合金;热力学

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51334001)

作者(Author): 刘文娟,朱荣,白瑞国,马瑞峰,李东明,王饶

DOI: 10.13289/j.issn.1009-6264.2014.05.038

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