Evolution of Initial Atmospheric Corrosion of Carbon Steel in an Industrial Atmosphere
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- 作者：Chen Pan ; Wei Han ; Zhenyao Wang ; Chuan Wang…
- 关键词：atmospheric corrosion ; carbon steel ; electrochemical techniques
- 刊名：Journal of Materials Engineering and Performance
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：25
- 期：12
- 页码：5382-5390
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Characterization and Evaluation of Materials; Tribology, Corrosion and Coatings; Quality Control, Reliability, Safety and Risk; Engineering Design;
- 出版者：Springer US
- ISSN：1544-1024
- 卷排序：25
文摘
The evolution of initial corrosion of carbon steel exposed to an industrial atmosphere in Shenyang, China, has been investigated by gravimetric, XRD, SEM/EDS and electrochemical techniques. The kinetics of the corrosion process including the acceleration and deceleration processes followed the empirical equation D = Atn. The rust formed on the steel surface was bi-layered, comprised of an inner and outer layer. The outer layer was formed within the first 245 days and had lower iron content compared to the inner layer. However, the outer layer disappeared after 307 days of exposure, which is considered to be associated with the depletion of Fe3O4. The evolution of the rust layer formed on the carbon steel has also been discussed.