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.
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