3104铝合金大扁锭中的第二相与夹杂物  

Secondary Phase and Inclusions in 3104 Aluminum Alloy Big Flat Ingot

作　　者：莫建新[1] 潘清林[1] 陈琴[1] 刘畅[1] 

机构地区：[1]中南大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2011年第9期866-868,共3页Special Casting & Nonferrous Alloys

摘　　要：采用扫描电镜、能谱分析研究了3104铝合金大扁锭中的第二相与夹杂物。结果表明,3104铝合金大扁锭中存在大量粗大骨骼状的(FeMn)Al6相,少量的α-Al(MnFe)Si、Mg2Si和游离的富Si相;3104铝合大扁锭中的夹杂物主要是氧化物夹杂、残余溶剂和富Si或富Ti的金属间化合物。分析了夹杂物的来源,提出了防止或减少粗大化合物与夹杂物的相应措施。Secondary phase and inclusions in 3104 aluminum alloy big flat ingot were observed by SEM（scanning electron microscope） and EDS（energy dispersive spectrometry）.The results show that there exists a lot of coarse skeleton（FeMn）Al6 phase and a little α-Al（MnFe）Si,Mg2Si and free Si-rich phase in the 3104 aluminum alloy flat ingot.Inclusions in the flat ingot are mainly composed of oxides,residual fluxes and Si-rich or Ti-rich intermetallic compounds.The origination of inclusion in the flat ingot was approached,and countermeasures of eliminating or reducing coarse compound and inclusions were presented.

关 键 词：3104铝合金 第二相 夹杂物 

分 类 号：TG146.21[一般工业技术—材料科学与工程]