title: Atomic force microscopy and electrochemical investigation on the corrosion behavior of carbon steel passivated by molybdate and chromate.
abstract: The effects of CrO(4)(2-) and MoO(4)(2-) ions on the corrosion behavior of carbon steel in 0.5 M NaCl solution have been studied using electrochemical measurements and atomic force microscopy. The results suggest that both ions have good inhibition effects on the general and pitting corrosion of carbon steel. At the same concentration, the inhibition efficiency of CrO(4)(2-) is higher than that of MoO(4)(2-). The passive film formed by CrO(4)(2-) is also much harder than that formed by MoO(4)(2-). The passive films formed by both ions are nonconductive.
authors.affiliation: School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Chen
authors.forename: Xiulan
authors.initials: X
authors.lastname: Zhang
authors.forename: Ling
authors.initials: L
authors.lastname: Huang
authors.forename: Xingpeng
authors.initials: X
authors.lastname: Guo