摘要
研究了添加不同含量的稀土合金对热浸镀铝镀层组织和性能的影响，并测定了不同工艺下浸镀层及浸镀试样的耐蚀性。试验结果表明，在热浸镀铝液中加入少量稀土（０．０５～０．７５％）能降低铝液表面的氧化速度，改善镀件表面质量和镀层的组织；当稀土元素含量控制在０．０５～０．２范围内时，能提高镀层的耐盐水（３％ＮａＣｌ）浸泡和耐盐雾腐蚀性能，而过量的稀土则明显降低镀层的耐蚀性。
The effect of adding various contents of rare carth on microstrures and properties of hot-dip aluminized coatings are studied.The thickness of coatings ,the corrosion resistance and adhesion of the dripped specimen are examined in different conditions.The result shows that addition of 0.05￣0.75%RE into the melted Al can improve the surface oxiding sistance and surface quality of dipped specimen.when addition of RE ranges from 0.05 to 0.2%,It can enhance the corrosion resistamce of the coating against the salt water(3%NaCl) immersion and salt spray.But,the superabundant RE will impair the enhanament.
出处
《南昌航空工业学院学报》
CAS
1999年第2期31-34,共4页
Journal of Nanchang Institute of Aeronautical Technology（Natural Science Edition）
关键词
热浸镀铝
稀土
耐蚀性
钢材
组织
Hot-dip Aluminizing
Rare Earth
Corrosion Resistance.
