期刊论文

中文

电镀与涂饰

1004-227X

2011

30

6

5-7

10.19289/j.1004-227x.2011.06.002

(B20081804):湖北省教育厅项目 (09Q03):校立青年项目

本校为第一机构

以硫酸亚铁和氯化锌为主盐配制弱酸性溶液,在铜基体上电镀锌铁合金。运用小槽电镀实验和电化学测试等技术,研究了香草醛对镀层的外观、组成、耐腐蚀性能以及微观形貌的影响。结果表明,在温度为20°C、pH为4.5的条件下电镀时,香草醛的加入使得镀层更加平整、致密,但其质量浓度高于0.2g/L之后,对改善镀层平整性的作用不大。极化曲线测试表明,镀液中加入香草醛时,所得锌铁合金镀层在3.5%（质量分数）NaCl溶液中的自腐蚀电位正移,自腐蚀电流密度减小。随着镀液中香草醛浓度的增大,镀层中铁的质量分数降低,镀层沉积速率出现先增后减的趋势。中性盐雾腐蚀测试表明,加入香草醛后获得最佳外观的镀层,其耐...

The electroplating of Zn–Fe alloy was carried out with Cu as substrate in a weakly acidic bath mainly composed of ferrous sulfate and zinc chloride. The effect of vanillin on appearance,composition,corrosion resistance and microscopic morphology of the Zn–Fe alloy coating was studied by small-bath electroplating experiment and electrochemical measurement. Results showed that the addition of vanillin makes the coatings prepared at temperature 20 °C and pH 4.5 smoother and more compact. However,the surface of Zn–Fe alloy coating doesn’t beco...