摘要
采用熔配法制备新型的铝晶粒细化剂—Al-Ti-B-RE中间合金,在铝熔体中同时加入钛粉、氟硼酸钾和稀土元素,该工艺具有生产的产品质量稳定、生产效率高、能耗低等特点。通过试验,用熔配法制备Al-Ti-B-RE中间合金的关键性工艺参数为:熔体在800℃～850℃静置30 min,多次强力搅拌。利用X射线衍射、电镜(SEM)等分析技术分析研究了Al-Ti-B-RE中间合金的组织,第二相粒子分布均匀、无偏析。证明选用的参数是可行性的、合理性的。
A new type Al-Ti-B-RE master alloy used as aluminum grain refiner has been prepared by mix-melting method.During preparation all the Ti,KBF4 and RE should be added into the melting aluminum at the same time.The characteristics of this technology as follows：product quality is stable,production efficiency is high and energy consumption is low.The holding time and stirring way of the melted aluminum for producing the master alloy have been investigated.The microstructure of the Al-Ti-B-RE master alloy has been analyzed by SEM.The feasibility and reasonableness of the technology parameters used for the master alloy preparation are confirmed.
出处
《轻合金加工技术》
CAS
北大核心
2010年第12期21-24,共4页
Light Alloy Fabrication Technology
基金
2010年度江苏省宿迁学院重点科研基金项目(2010KY10)
江苏省2008年度高校"青蓝工程"优秀青年骨干教师基金项目资助
