热浸镀富铈稀土铝合金的耐腐蚀性研究(英文)

Investigation of Properties of Hot-dippedCe-rich Rare Earth Aluminum Alloy uponConditions of Corrosion Environment

研究了富铈稀土对碳钢热浸镀铝合金组织及耐腐蚀性的影响。结果表明,在稀土含量为0.1％～0.5％范围内随着稀土含量的增加热浸镀层组织均匀,当稀土含量超过0.5％时扩散层厚度明显减小,稀土含量0.3％的热浸镀层具有最好的组织,并且在酸性介质腐蚀条件下具有最好的耐腐蚀性。含0.3％稀土的热扩散层的耐腐蚀性比纯铝提高2～3倍。

The effect of rare earth on microstructure components and corrosion-resistance of hot-dipped aluminum was studied. The results showed that the microstructure was homogenized, the forehead edge of hot-dipped layer became smooth with the increase of the rare earth content in the range of 0.1% -0.5% , but the thickness of difiused layer began obviouSly decrease when the content was more than 0.5%. The hot-dipped layer with 0.3% rare earth possessed best microstructure characteristic and corrosion-resistance. The corrosion resistance of the hot-diffused layer with 0.3% rare earth was 2-3 times as much as that with 0% rare earth.