不同镁含量铝基牺牲阳极材料的组织与性能研究

Microstructure and Property of Aluminum Alloy Sacrificed Anodes with Different Mg Contents

为了探讨Mg对铝基牺牲阳极的影响 ,在研制高效铝基阳极的基础上 ,运用电化学测试和扫描电镜技术 ,考察了不同Mg含量对合金结晶形态和显微组织的影响。结果表明 :合金元素Mg的含量主要影响合金的树枝晶形态和第二相粒子的性质、形态、数量和分布 ,进而影响阳极表面溶解的均匀性和电流效率 ,Al-Zn -In -Sn -Mg -Si系合金阳极中Mg的最佳含量应在 2 %左右。本研究为进一步开发高效铝基合金阳极提供了理论参考。

Influence of magnesium content on the microstructure and crystalline state was investigated based on prepared high efficiency aluminum alloy sacrificed anodes by electrochemical methods and SEM. Experimental results indicate that the content of alloying element Mg has an effect on the dendrite morphology and the characteristics, morphologies, quantity and distribution of the second phase particles, then affects the surface dissolved characteristic and efficiency of anodes. The best content of magnesium is 2 % in Al Zn In Sn Mg Si alloy anode.