Electrochemical Corrosion Behavior and the Related Mechanism of Ti3SiC2/Cu Composites in a Strong Acid Environment
Abstract
:1. Introduction
2. Experimental
2.1. Sample Preparation
2.2. Electrochemical Measurements
2.3. Characterization
3. Results and Discussion
3.1. Potentiodynamic Polarization
3.2. EIS
3.3. Surface Morphology and Composition of Polarization Surface
3.4. Corrosion Mechanism
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Ecorr (V) | icorr (A/cm2) | ip (A/cm2) | Ep (V) | |
---|---|---|---|---|
HNO3 (11.6%) | 0.06 | 7.05 × 10−4 | 5.01 × 10−5 | 0.55 |
H2SO4 | 0 | 3.01 × 10−6 | 6.87 × 10−6 | 0.6 |
Rs (Ω·cm2) | Q1 (10−4F/cm2) | Rt (Ω·cm2) | Q2 (10−4 F/cm2) | Rb (Ω·cm2) | ||
---|---|---|---|---|---|---|
HNO3 (11.6%) | OCP | 0.7151 | 120.38 | 9.785 | 118,600 | 4.79 |
0.55 V | 0.84 | 609.96 | 14.66 | 816.66 | 34.75 | |
0.8 V | 0.7277 | 127.52 | 9.778 | 17,630 | 8.679 | |
1.75 V | 1.023 | 143.88 | 7.129 | 2875.1 | 17.46 | |
H2SO4 | OCP | 5.67 | 8.91 | 430.9 | 24.192 | 1843 |
0.7 V | 5.251 | 6.81 | 300.1 | 10.417 | 6731 | |
1.7 V | 4.744 | 1.52 | 77.81 | 13 | 15,275 |
Samples | Atomic Percentages | |
---|---|---|
HNO3 (11.6%) | 0.55 V | 37.3%Ti, 11.17%Si, 31.28%C, 0.66%Cu, 17.75%O |
0.8 V | 22.48%Ti, 11.01%Si, 18.82%C, 4.25%Cu, 41.54%O | |
1.75 V | 38.2%Ti, 13.22%Si, 27.17%C, 0.34%Cu, 19.06%O | |
H2SO4 | 0.7 V | 34.59%Ti, 17.72%Si, 29.82%C, 2.91%Cu, 17.72%O, 0.13%S |
1.7 V | 34.25%Ti, 13.94%Si, 31.26%C, 5.45%Cu, 13.94%O, 0.06%S |
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Zhang, R.; Du, C.; Liu, F.; Wu, C. Electrochemical Corrosion Behavior and the Related Mechanism of Ti3SiC2/Cu Composites in a Strong Acid Environment. Materials 2024, 17, 4035. https://doi.org/10.3390/ma17164035
Zhang R, Du C, Liu F, Wu C. Electrochemical Corrosion Behavior and the Related Mechanism of Ti3SiC2/Cu Composites in a Strong Acid Environment. Materials. 2024; 17(16):4035. https://doi.org/10.3390/ma17164035
Chicago/Turabian StyleZhang, Rui, Chengzhi Du, Fuyan Liu, and Chenlong Wu. 2024. "Electrochemical Corrosion Behavior and the Related Mechanism of Ti3SiC2/Cu Composites in a Strong Acid Environment" Materials 17, no. 16: 4035. https://doi.org/10.3390/ma17164035