Three-Dimensional Morphology and Watershed-Algorithm-Based Method for Pitting Corrosion Evaluation
Abstract
:1. Introduction
2. Experiment Procedure
2.1. Accelerated Corrosion Test of H-Beams
2.2. Three-Dimensional Morphological Scanning of Corroded Steel Plates
3. Identification, Extraction, and Evaluation Method for Rust Pits
3.1. Method of Identifying and Extracting Surface Rust Pits
3.2. Method of Calculating the Size and Shape of Rust Pits
4. Results and Discussion
4.1. Rust Pit Density
4.2. Rust Pit Size
4.3. Rust Pit Shape
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Specimen No. | Corrosion Duration/Month | Weight Loss Rate/% | Rust Pit Density /mm−2 | Average Pit Depth /μm | Maximum Pit Depth /μm | Median of Rust Pit Depth /μm |
---|---|---|---|---|---|---|
C3 | 3 | 5.08 | 59.55 | 170.21 | 632.51 | 155.25 |
C4 | 4 | 6.15 | 54.65 | 145.48 | 417.63 | 137.14 |
C6 | 6 | 7.92 | 55.7 | 150.62 | 462.16 | 141.63 |
C8 | 8 | 10.07 | 52.1 | 161.36 | 628.74 | 142.37 |
C12 | 12 | 15.02 | 43.35 | 191.80 | 493.09 | 184.04 |
C15 | 15 | 18.09 | 54.3 | 185.76 | 428.90 | 184.13 |
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Li, A.; Ma, H.; Xu, S. Three-Dimensional Morphology and Watershed-Algorithm-Based Method for Pitting Corrosion Evaluation. Buildings 2022, 12, 1908. https://doi.org/10.3390/buildings12111908
Li A, Ma H, Xu S. Three-Dimensional Morphology and Watershed-Algorithm-Based Method for Pitting Corrosion Evaluation. Buildings. 2022; 12(11):1908. https://doi.org/10.3390/buildings12111908
Chicago/Turabian StyleLi, Anbang, Hongwang Ma, and Shanhua Xu. 2022. "Three-Dimensional Morphology and Watershed-Algorithm-Based Method for Pitting Corrosion Evaluation" Buildings 12, no. 11: 1908. https://doi.org/10.3390/buildings12111908