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微量添加元素及杂质对铝合金耐蚀性有影响.最初只研究Fe、Cu及Mn主要添加元素的作用.关于镍的影响,虽然对Al-19.8(重量)%Ni(以下同)合金的极化曲线,金属间化合物Al_3Ni的电化学性能,Al-0.5%Ni合金的自然电极电位,AlNi_3、AlNi、Al-35.2%Fe-33.8%Ni合金的极化曲线进行过报导,但对添加了Ni的实用铝合金耐蚀性的研究较少.但添加定量镍对耐蚀性影响的报导还没有看到.本文对纯铝(99.99%Al)、Al-Fe合金及3003合金添加微量Ni的腐蚀情况作了研讨.
Trace addition of elements and impurities affect the corrosion resistance of aluminum alloys. Initially only the main elements of Fe, Cu and Mn were studied. Regarding the effect of nickel, the corrosion resistance of Al-19.8 wt% Ni (the same below) The electrochemical performance of Al_3Ni intermetallic compound, the natural electrode potential of Al-0.5% Ni alloy, the polarization curves of AlNi_3, AlNi and Al-35.2% Fe-33.8% Ni alloy have been reported. However, However, there is not much research on the corrosion resistance of practical aluminum alloy, but the effect of adding quantitative nickel on the corrosion resistance has not been reported yet.In this paper, the corrosion of pure aluminum (99.99% Al), Al-Fe alloy and 3003 alloy added with trace Ni The situation was discussed.