铝热还原法制备AlV55合金的研究  

Preparation of Al V55 Alloy by Aluminothermic Reduction

作　　者：尹丹凤[1] 孙朝晖[1] 陈海军[1] 王永钢 杜光超[1] Yin Danfeng Sun Zhaohui Chen Haijun Wang Yonggang Du Guangchao(Pangang Group Research Institute Co. , Ltd. , State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China Panzhihua Vanadium Products Factory, Pangang Group Vanadium Industry Company, Panzhihua 617023, Sichuan, China)

机构地区：[1]攀钢集团研究院有限公司钒钛冶金研究所钒钛资源综合利用国家重点实验室,四川攀枝花617000 [2]攀钢集团钒业公司攀枝花钒制品厂,四川攀枝花617023

出　　处：《钢铁钒钛》2017年第5期42-45,共4页Iron Steel Vanadium Titanium

摘　　要：利用Fact Sage热力学软件和差热分析仪对铝热法制备Al V55合金的热力学过程进行了分析,结果表明:该反应可自发进行,反应的绝热燃烧温度为3 276.61K,单位热效应为4 567.06 J·g-1,属于液—液反应。研究了不同V含量对合金成品率以及单位热效应对合金钒收率的影响:对于Al V55合金,提高合金V含量可以最大程度的降低脆性相Al8V5对合金成品率的影响,所以在不隔绝空气的情况下提高合金的V含量可达到提高合金成品率的目的;单位热效应对合金钒收率影响很大,单位热效应确定为3 367 J·g-1时合金的钒收率最高,约为96.5%。The thermodynamics for preparation of AlV55 by aluminothermic process was analyzed by Fact Sage software and differential thermal analyzer.The results show that the reaction occurs spontaneously with 3 276.61 K of adiabatic combustion temperature and 4 567.06 J·g-1 of unit thermal effect,attributed to a liquid-liquid reaction.The effect of V content on yield rate of products and influence of unit thermal effect on vanadium yield rate were also studied.It is indicated that for AlV55 alloy the elevated V content can reduce the effect of Al8V5 brittle phase and increase the yield rate of products in air atmosphere.The unit thermal effect has a significant effect on vanadium yield rate,with about 96.5% of the maximum vanadium yield rate at 3 367 J·g^-1 of the unit thermal effect.

关 键 词：钒铝合金 铝热法 热力学 钒收率 

分 类 号：TF841.3[冶金工程—有色金属冶金] TG146.4[一般工业技术—材料科学与工程]