The Galvanic Corrosion of AM60B Coupled with DC01 in Simulated Environments with Varying Water Salinity
Abstract
:1. Introduction
2. Experimental Methods
2.1. Material and Specimen Preparation
2.2. Microstructure Characterization
2.3. Electrochemical Measurements
2.4. Galvanic Immersion Test
2.5. Modeling Methodology
3. Results
3.1. Initial Microstructure and Elemental Distribution of the Coupling Materials
3.2. Electrochemical Measurements of the Coupling Materials
3.3. Galvanic Corrosion of AM60B/DC01
3.4. FEM Modeling
3.5. Effect of DC01 on Galvanic Corrosion
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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NaCl | Ecorr (V) | icorr (μA/cm2) | βa (V/dec) | βc (V/dec) |
---|---|---|---|---|
0.1 wt. % | −1.38 | 1.62 | 0.13 | −0.09 |
0.5 wt. % | −1.49 | 8.61 | 0.03 | −0.12 |
3.5 wt. % | −1.54 | 57.94 | 0.04 | −0.10 |
NaCl | Ecorr (V) | icorr (μA/cm2) | βa (V/dec) | βc (V/dec) |
---|---|---|---|---|
0.1 wt. % | −0.52 | 6.59 | 0.04 | −0.06 |
0.5 wt. % | −0.61 | 7.45 | 0.08 | −0.15 |
3.5 wt. % | −0.67 | 9.13 | 0.06 | −0.06 |
NaCl | RS (Ω·cm2) | Qf (F·cm−2) | n | Rf (Ω·cm2) | Qdl (F·cm−2) | n | Rct (Ω·cm2) | L (H) | RL (Ω·cm2) |
---|---|---|---|---|---|---|---|---|---|
0.1 wt. % | 212 | 1.12 × 10−5 | 0.92 | 3.40 × 103 | 9.53 × 10−4 | 0.80 | 2640 | — | — |
0.5 wt. % | 44 | 9.91 × 10−6 | 0.94 | 1.24 × 103 | 7.14 × 10−5 | 0.99 | 265 | 4.45 × 104 | 8.44 × 103 |
3.5 wt. % | 6 | 1.04 × 10−5 | 0.94 | 5.36 × 102 | 9.13 × 10−5 | 0.99 | 288 | 4.95 × 103 | 2.17 × 103 |
Condition | RS (Ω·cm2) | Qf (F·cm−2) | n | Rf (Ω·cm2) | Qdl (F·cm−2) | n | Rct (Ω·cm2) |
---|---|---|---|---|---|---|---|
0.1 wt. % | 173 | 9.72 × 10−4 | 0.68 | 1177 | 1.09 × 10−3 | 0.46 | 1298 |
0.5 wt. % | 28 | 1.35 × 10−3 | 0.67 | 65 | 1.39 × 10−4 | 0.99 | 1139 |
3.5 wt. % | 6 | 1.58 × 10−3 | 0.67 | 405 | 2.68 × 10−3 | 0.45 | 535 |
Condition | RS (Ω·cm2) | Qf (F/cm2) | n2 | Rf (Ω·cm2) | Qdl (F/cm2) | n3 | Rct (Ω·cm2) | L(H) | R (Ω·cm2) |
---|---|---|---|---|---|---|---|---|---|
0.1 wt. % | 45 | 1.36 × 10−7 | 0.39 | 229 | 3.07 × 10−4 | 0.99 | 210 | 6.99 × 103 | 1512 |
0.5 wt. % | 34 | 4.52 × 10−5 | 0.99 | 185 | 2.20 × 10−5 | 0.80 | 69 | 1.46 × 103 | 388 |
3.5 wt. % | 32 | 3.06 × 10−5 | 0.99 | 302 | 9.70 × 10−5 | 0.59 | 73 | 3.83 × 103 | 105 |
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Zhang, W.; Yu, C.; Pu, W.; Li, X.; Zhang, C.; Cheng, R.; Quan, G.; Yang, L.; Wang, F. The Galvanic Corrosion of AM60B Coupled with DC01 in Simulated Environments with Varying Water Salinity. Materials 2024, 17, 4099. https://doi.org/10.3390/ma17164099
Zhang W, Yu C, Pu W, Li X, Zhang C, Cheng R, Quan G, Yang L, Wang F. The Galvanic Corrosion of AM60B Coupled with DC01 in Simulated Environments with Varying Water Salinity. Materials. 2024; 17(16):4099. https://doi.org/10.3390/ma17164099
Chicago/Turabian StyleZhang, Wei, Chuntang Yu, Wanqi Pu, Xiaoyun Li, Chi Zhang, Renju Cheng, Guozheng Quan, Linlin Yang, and Fuhui Wang. 2024. "The Galvanic Corrosion of AM60B Coupled with DC01 in Simulated Environments with Varying Water Salinity" Materials 17, no. 16: 4099. https://doi.org/10.3390/ma17164099