|
| Study of Galvanic Corrosion between Steel and Carbon Fiber Composite |
| Received:March 22, 2021 Revised:May 27, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.11.015 |
| KeyWord:steel carbon fiber galvanic corrosion oxygen reduction reaction electrochemical test open-circuit potential |
| Author | Institution |
| SUN Wei |
No.2 Naval Military Representative Office in Shanghai Region, Shanghai , China |
| HU Yu-long |
Department of Foundation, Naval University of Engineering, Wuhan , China |
| WANG Zhi-qiao |
Institute of Special Services, Naval Research Academy, Beijing , China |
|
| Hits: |
| Download times: |
| Abstract: |
| To investigate the galvanic corrosion behavior of galvanic couple between steel and carbon fiber composite, 10CrNiCu steel and T700 carbon fiber composite were used. The immersion test and electrochemical test in 3.5%NaCl solution of the galvanic couple samples were carried out, and the corrosion morphology of the samples after test were analyzed. The corrosion rates of 10CrNiCu steel in galvanic couple together with its self-corrosion were measured, and the corrosion behavior of galvanic couple was analyzed. The open-circuit potential difference between carbon fiber and 10CrNiCu steel is higher than 850 mV. While the couple between steel and carbon fiber was formed, the strong galvanic action arose from carbon fiber. While the area ratio of steel and carbon fiber was 1:1, the corrosion rate of 10CrNiCu steel increased to over 1.5 times. The potential of carbon fiber alone in 3.5%NaCl solution is about the equilibrium potential of the oxygen reduction reaction. While the galvanic element between steel and carbon fiber composite is formed, the corrosion of steel can be accelerated significantly because the oxygen reduction reaction is promoted significantly. |
| Close |
|
|
|