Ti和脉冲磁场对Al-4.5Cu合金凝固组织的影响  

Effects of Ti and Pulse Magnetic Field on Solidification Microstructure of Al-4.5Cu Alloy

作　　者：黄政 陈乐凯 朱益文 周全[1] HUANG Zheng;CHEN Lekai;ZHU Yiwen;ZHOU Quan(School of Acronautical Manufacturing Engineering,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]南昌航空大学航空制造工程学院,江西南昌330063

出　　处：《热加工工艺》2020年第15期28-31,共4页Hot Working Technology

基　　金：江西省教育厅科技资助项目(GJJ170580)。

摘　　要：对比研究了未处理、Ti处理、脉冲磁场处理、Ti-脉冲磁场复合处理对Al-4.5Cu合金凝固组织的影响,同时对比了复合处理条件下不同的脉冲电压对合金凝固组织的影响。研究表明:Ti处理、脉冲磁场处理和复合处理均可以细化合金凝固组织,且复合处理的细化效果最为显著。复合处理条件下,在0~270 V范围内,随着脉冲电压的增加,合金凝固组织逐渐细化,合金的第二相分布情况基本与晶粒大小对应,即晶粒越小,第二相分布越均匀。The effects of untreatment,Ti treatment,pulse magnetic field treatment and composite treatment of Ti and pulse magnetic field on solidification microstructure of Al-4.5 Cu alloy were compared and studied.The effects of different pulse voltage on solidification microstructure of Al-4.5 Cu alloy under the conditions of composite treatment were compared.The results show that Ti treatment,pulse magnetic field treatment and composite treatment can all refine the solidification microstructure of the alloy,and the effect of composite treatment is the most remarkable.The solidification microstructure of the alloy is refined gradually with the increase of pulse voltage in the range of 0-270 V under compound treatment.The second phase distribution of the alloy is basically corresponding to the grain size.The smaller the grain size is,the more uniform the second phase distribution is.

关 键 词：AL-4.5CU合金 脉冲磁场 复合处理 凝固组织 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG244[金属学及工艺—金属材料]