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| Comparison on Corrosion Behavior of Two Kinds of Red Copper in 3.5% NaCl Solution |
| Received:May 25, 2011 Revised:October 15, 2011 |
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| DOI： |
| KeyWord:red copper polarization electrochemical impendence spectroscopy corrosion microstructure |
| Author | Institution |
| LIN Yv-feng |
Navy Engineering University，Wuhan ，China |
| KONG Xiao-dong |
Navy Engineering University，Wuhan ，China |
| TIAN Zhi-qiang |
Navy Engineering University，Wuhan ，China |
| WU Gang |
Navy Engineering University，Wuhan ，China |
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| Abstract: |
| Copper T2 and TuP were immersed in 3.5% NaCl solution. Polarization and electrochemical impedance spectroscopy methods were applied to analyze the corrosion behavior of the two kinds of red copper. The result showed that self-corrosion potential of the two kinds of copper first decline and then climbs up with immersed time, and corrosion rate first increases and then decreases as the time increases. Microstructure of copper T2 showed that second phase inclusions are uneven size and coarse grains, and inclusion composition is different though SEM and EDS, which is the main reason for its poor corrosion resistance. |
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