纳米氧化钇对海洋用铝合金耐腐蚀性能的影响

Effect of Nano-Y_2O_3 on corrosion resistance of marine aluminum alloy

铝合金是一种非常重要的船舰材料,由于海水具有腐蚀性能,可对长期在海水中的铝合金材料造成腐蚀,所以如何提高铝合金材料在海水中的抗腐蚀性能是一个非常有意义的课题。本文以碳胺溶液进行沉淀制备纳米氧化钇,通过Cu SO4点滴实验和扫描电镜对硅烷膜表面的观察发现,在硅烷膜制备过程中添加氧化钇可以很明显的提高硅烷膜的耐腐蚀性,且在本实验条件下,氧化钇的最佳掺杂量为10~20 mg/L。

Aluminum alloy is a very important kind of ship material, because the water has corrosion resistance, aluminum alloy material could be corroded when in the sea water for a long time, so how to improve the corrosion resistance of aluminum alloy material in seawater is a very meaningful project. This paper via precipitation in carbon amine solution to preparation of nanometer Y_2O_3. CuSO_4 drip experiment and scanning electron microscopy(SEM) observation of the silane film surface showed that add Y_2O_3 in the process of silane film preparation, which is very useful to improve the corrosion resistance of the silane film surface, and under this paper experiment condition, the best doped Y_2O_3 is 1020 mg/L.