Secondary Phase and Inclusions in 3104 Aluminum Alloy Big Flat Ingot

Mo Jianxin; Pan Qinglin; Chen Qin; Liu Chang

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Secondary Phase and Inclusions in 3104 Aluminum Alloy Big Flat Ingot
Vol. 31, Issue 9, Pages: 866-868(2011)
Published： 2011 ，
DOI：

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[1]莫建新,潘清林,陈琴,刘畅.3104铝合金大扁锭中的第二相与夹杂物[J].特种铸造及有色合金,2011,31(09):866-868.

Mo Jianxin, Pan Qinglin, Chen Qin, et al. Secondary Phase and Inclusions in 3104 Aluminum Alloy Big Flat Ingot. [J]. Special Casting & Nonferrous Alloys 31(9):866-868(2011)
[1]莫建新,潘清林,陈琴,刘畅.3104铝合金大扁锭中的第二相与夹杂物[J].特种铸造及有色合金,2011,31(09):866-868. DOI：

Mo Jianxin, Pan Qinglin, Chen Qin, et al. Secondary Phase and Inclusions in 3104 Aluminum Alloy Big Flat Ingot. [J]. Special Casting & Nonferrous Alloys 31(9):866-868(2011) DOI：

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。

Abstract

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.