In particular attention was payed on the effect of factors sush as the content of REC,pH,and time on the morphology,thichness as well as corrosion resistance of the phosphate coating.

• 探讨了在硝酸盐-锌系磷化过程中稀土化合物、溶液酸碱度、时间对磷化膜外观、膜重和耐蚀性的影响。