Long-term corrosion study of low carbon steel coated with titanium boronitride in simulated soil solution

被引：12
|
作者：
Alkhateeb, E. [1 ]
Ali, R. [2 ]
Popovska-Leipertz, N. [1 ]
Virtanen, S. [2 ]
机构：
[1] Univ Erlangen Nurnberg, Chair Chem React Engn, D-91058 Erlangen, Germany
[2] Univ Erlangen Nurnberg, Chair Surface Sci & Corros, D-91058 Erlangen, Germany
来源：
ELECTROCHIMICA ACTA | 2012年 / 76卷
关键词：
Titanium boronitride; Low carbon steel; Chemical vapor deposition; Corrosion behavior; Simulated soil solution; B-N COATINGS; ELECTROCHEMICAL EVALUATION; VAPOR-DEPOSITION; TI; BEHAVIOR; FILMS; PERFORMANCE;
D O I：
10.1016/j.electacta.2012.05.042
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A new type of titanium boronitride (TiBN) coating was prepared by chemical vapor deposition (CVD) on low carbon steel (LCS). The coating morphology, chemical composition and crystal structure were studied by different characterization techniques, before and after corrosion testing. Corrosion testing was carried out by electrochemical techniques (open-circuit potential, polarization curves, impedance spectroscopy) in simulated soil solution. The TiBN coating provides an excellent corrosion protection for the steel substrate, up to the tested 90 days of immersion. Even though minor changes in the coating composition and phase structure were observed after long-term immersion, this does not decrease the protective nature of the coating. An analysis of the impedance data indicates that the coating may initially contain very small defects (pinholes), which gradually are blocked by corrosion products, improving the corrosion resistivity of the coated steel. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：312 / 319
页数：8
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