高钪含量铝钪合金的组织与性能  

Microstructure and Properties of High-scandium-content Aluminum Scandium Alloy

作　　者：文康 刘华 黄美松 周煌 樊玉川 刘维 张闻扬 WEN Kang;LIU Hua;HUANG Mei-song;ZHOU Huang;FAN Yu-chuan;LIU Wei;ZHANG Wen-yang(Hunan Rare Earth Metal Material Institute Co.,Ltd.,Changsha 410126,China;Hunan Key Laboratory for Rare Earth Functional Materials,Changsha 410126,China)

机构地区：[1]湖南稀土金属材料研究院有限责任公司,湖南长沙410126 [2]稀土功能材料湖南省重点实验室,湖南长沙410126

出　　处：《湖南有色金属》2021年第6期45-48,共4页Hunan Nonferrous Metals

基　　金：湖南省战略性新兴产业科技攻关与重大科技成果转化专项项目(2018GK4001),湖南省科技创新计划项目(2017TP1031)。

摘　　要：采用真空悬浮感应熔炼炉制备含钪20%的铝钪二元合金,并对比浇注和水冷铜坩埚中随炉冷却两种成型方法所制得铸锭的成分均匀性,从而确定合金铸锭的最佳成型方式。采用金相显微镜、X射线衍射(XRD)仪对Al-20%Sc合金铸锭的物相组成和晶粒组织进行分析,并通过扫描电子显微镜(SEM),结合能谱,对热锻后Al-20%Sc合金中第二相的分布情况及成分进行表征和分析。Binary aluminum scandium(20%)alloy was prepared by using a vacuum levitation meling furnace.Moldcasting and furnace cooling method were both used to make ingots,and composition uniformity of ingots made bythese two methods was compared.Optical microscope,X-ray Dillractometer were used to analyze the phases andgrains of the alloy.Scanning Electron Microscope(SEM)was employed to characlerize the distribution of secondphases in ingots after hot forging and Energy Dispersive Spectrometer(EDS)was used to analyze the composition ofphases.

关 键 词：铝合金 铝钪合金 Al3 Sc 靶材 

分 类 号：TG146.21[一般工业技术—材料科学与工程]