Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7893238 | Corrosion Science | 2018 | 49 Pages |
Abstract
Corrosion-induced CaCO3 scaling is extremely widespread at metal/water interface. However, the anti-scale and anti-corrosion behaviour of existing inhibitors have mostly been investigated separately without considering their interaction. Herein, the roles of corrosion inhibition in mitigating interfacial scaling were evaluated on carbon steel and stainless steel by introducing NaNO2 to enhance their corrosion resistance. Results reveal that corrosion-induced pH increase at micro cathodes dominates the interfacial scaling processes by inducing rapid nucleation. A temperature elevation promotes interfacial scaling mainly through aggravating steel corrosion. Once the micro cathodic processes are inhibited, CaCO3 scaling can be evidently retarded even at elevated temperatures.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Tianzhen Zhu, Lida Wang, Wen Sun, Meng Wang, Jisheng Tian, Zhengqing Yang, Suilin Wang, Liang Xia, Shaohui He, Yingzheng Zhou, Guichang Liu,