电流对电弧作用下合成Al-6Ti-1C中间合金的影响  

Effects of Current on the Synthesis of Al-6Ti-1C Master Alloy under Arc Action

作　　者：张胜全[1] 王准 王胜[1] 丁万武[1] 王鹏[1] 孔繁繁 Zhang Shengquan1,wang Zhun1,2,wang Sheng1,Ding Wanwu1,wang Peng1,Kong Fanfan1(1. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology;2. Key Laboratory of Nonferrous Metal Alloys and Processing, Ministry of Education, Lanzhou University of Technolog)

机构地区：[1]兰州理工大学省部共建有色金属先进材料加工与再利用国家重点实验室 [2]兰州理工大学有色金属合金及加工教育部重点实验室

出　　处：《特种铸造及有色合金》2018年第9期938-941,共4页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(51661021)

摘　　要：采用工业纯铝、氟钛酸钾和石墨粉在电弧作用下制备Al-6Ti-1C中间合金,并利用OM、SEM、XRD和EDS对Al-6Ti-1C中间合金的显微组织和物相成分进行观察和分析,并采用Al-6Ti-1C中间合金对工业纯铝进行细化试验。结果表明,电流对Al-Ti-C中间合金的显微组织有着重要的影响。随着电流改变,TiAl3和TiC粒子的形态和分布也随之发生改变,并影响其细化晶粒的效果。在电流为70A时,电弧作用下制备出的Al-6Ti-1C中间合金对工业纯铝的细化效果最好。Al-6 Ti-1 C master alloys were prepared by the arc action using industrial pure aluminum,potassium fluorotitanate and graphite powders.The microstructure and phase composition of Al-6 Ti-1 C master alloys were observed and analyzed by OM,SEM,XRD,and EDS.Then it was utilized to refine industrial pure aluminum.The results reveal that current has an important influence on the microstructure of Al-6 Ti-1 C master alloys.With the change of current,the morphology and distribution of TiAl3 particles are also changed,which controls the effect of grain refinement.With the current of 70 A,the Al-6 Ti-1 C master alloy prepared by the arc presents the desirable refining effect on industrial pure aluminum.

关 键 词：电流 电弧 AL-TI-C中间合金 TIAL3 TIC 

分 类 号：TG146.21[一般工业技术—材料科学与工程]