Galvanic Corrosion between Alloy 690 and Magnetite in Alkaline Aqueous Solutions
Abstract
:1. Introduction
2. Experimental Procedure
2.1. Material Preparation
Element (wt. %) | C | Cr | Fe | Si | Mn | Ti | Al | Ni |
---|---|---|---|---|---|---|---|---|
Alloy 690 | 0.02 | 28.0 | 10.2 | 0.1 | 0.3 | 0.1 | 0.1 | Bal. |
2.2. Deposition of Magnetite Films
2.3. Electrochemical Tests
3. Results and Discussion
3.1. Electrodeposition of Magnetite
3.2. Electrochemical Behavior of Alloy 690 and Magnetite
Corrosion parameters | 30 °C | 60 °C | ||
---|---|---|---|---|
Alloy 690 | Magnetite | Alloy 690 | Magnetite | |
Ecorr (VSCE) | −0.610 ± 0.012 | −0.418 ± 0.008 | −0.647 ± 0.014 | −0.445 ± 0.004 |
Ecouple (VSCE) | −0.432 ± 0.005 | −0.469 ± 0.010 | ||
icorr (μA/cm2) | 0.21 ± 0.02 | 0.79 ± 0.08 | 0.41 ± 0.05 | 1.31 ± 0.11 |
icouple (μA/cm2) | 0.39 ± 0.10 | 1.08 ± 0.17 |
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Jeon, S.-H.; Song, G.-D.; Hur, D.H. Galvanic Corrosion between Alloy 690 and Magnetite in Alkaline Aqueous Solutions. Metals 2015, 5, 2372-2382. https://doi.org/10.3390/met5042372
Jeon S-H, Song G-D, Hur DH. Galvanic Corrosion between Alloy 690 and Magnetite in Alkaline Aqueous Solutions. Metals. 2015; 5(4):2372-2382. https://doi.org/10.3390/met5042372
Chicago/Turabian StyleJeon, Soon-Hyeok, Geun-Dong Song, and Do Haeng Hur. 2015. "Galvanic Corrosion between Alloy 690 and Magnetite in Alkaline Aqueous Solutions" Metals 5, no. 4: 2372-2382. https://doi.org/10.3390/met5042372