Desmutting of aluminium alloy 2024-T3 using rare earth electrolyte
Desmutting of aluminium alloy 2024-T3 using rare earth electrolyte
复制标题
稀土电解液对铝合金2024-T3除污
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
P. Miller
中科院分区：
文献类型：
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作者：
A. Hughes;K. Nelson;P. Miller
采用SEM和X射线光电子能谱(XPS)研究了新型稀土除污液对2024-T3铝合金的除污效果。从SEM可以明显看出，在除污过程中，金属间化合物和碱洗后留下的碱性氧化皮都发生了溶解和蚀刻。此外，来自金属间化合物的铜作为残留物沉积在除污合金的表面上。残留物以约 200 nm 大小的沉淀物形式存在，经证明是具有氧化物涂层的铜。添加氧化剂如过氧化氢 (H2O2) 和过硫酸钾 (K2 S2O8) 可去除这些沉淀物。从XPS可以明显看出，去污后表面涂覆有一层薄薄的6 nm氧化铝。
The desmutting of 2024-T3 aluminium alloy using a new rare earth desmutting solution has been studied by SEM and X-ray photoelectron spectroscopy (XPS). It was evident from SEM that, during desmutting, there was dissolution and etching of both the intermetallics and the basic oxide scale left after alkaline cleaning. In addition, copper from the intermetallics was deposited as a residue on the surface of the desmutted alloy. The residue, in the form of precipitates ∼200 nm in size, proved to be copper with an oxide coating. The addition of oxidants such as hydrogen peroxide (H2O2) and potassium persulphate (K2 S2O8) removed these precipitates. It was apparent from XPS that the surface was coated with a thin 6 nm aluminium oxide after desmutting.