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本文对在Ａｌ─３Ｓｉ合金浴中加入０．０５～０．７９％ＲＥ后获得的热浸铝合金镀层的组织和耐腐蚀性性能进行了研究。研究结果表明，微量（≤０．３５％）ＲＥ能改善铝合金浴的流动性和镀层与钢基的结合，并提高镀层的耐盐雾腐蚀和耐３％ＮａＣｌ盐水浸泡腐蚀性能；而过量ＲＥ则由于在镀层中形成明显的ＲＥ富集区而降低镀层的耐腐蚀性能。
In this paper, the microstructure and corrosion resistance of hot-dip aluminum alloy coatings obtained after adding 0.05-0.77% RE in Al-3Si alloy bath were studied. The results show that trace (≤0.35%) RE can improve the fluidity of aluminum alloy bath and the combination of coating and steel base, and improve salt spray corrosion resistance and corrosion resistance of 3% NaCl salt immersion coating. However, excessive RE The corrosion resistance of the coating is reduced due to the formation of a significant RE-rich zone in the coating.