Analysis of Platen Superheater Tube Degradation in Thermal Power Plants via Destructive/Non-Destructive Characteristic Evaluation
Abstract
:1. Introduction
2. Supercritical Tubes in Standard Coal-Fired Power Plant Superheaters (PSH)
3. Experimental Method and Results
3.1. Tube Analysis along the Circumferential Direction
3.2. Ultrasonic Wave Velocity Measurement
3.3. Microstructural Analysis
3.4. Tensile Test
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Conflicts of Interest
References
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C | Si | Mn | P | S | Ni | Cr | Mo | V | |
---|---|---|---|---|---|---|---|---|---|
X20 CrMoV12.1 | 0.17~0.23 | Max 0.50 | 0.40~0.70 | Max 0.030 | Max 0.030 | 0.30~0.80 | 10.00~12.5 | 0.80~1.25 | 0.25~0.35 |
P91 | 0.08~0.12 | 0.2~0.5 | 0.3~0.6 | Max 0.02 | Max 0.01 | Max 0.4 | 8.0~9.5 | 0.85~1.05 | 0.18~0.25 |
Specimen Number | 1 | 2 | 3 | |
---|---|---|---|---|
Temperature [°C] | Max. | 545.14 | 544.38 | 528.31 |
Avg. | 489.60 | 492.83 | 481.77 |
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Oh, S.-B.; Kim, J.; Han, S.-W.; Kim, K.-M.; Yun, D.-S.; Kim, D.-W. Analysis of Platen Superheater Tube Degradation in Thermal Power Plants via Destructive/Non-Destructive Characteristic Evaluation. Materials 2022, 15, 581. https://doi.org/10.3390/ma15020581
Oh S-B, Kim J, Han S-W, Kim K-M, Yun D-S, Kim D-W. Analysis of Platen Superheater Tube Degradation in Thermal Power Plants via Destructive/Non-Destructive Characteristic Evaluation. Materials. 2022; 15(2):581. https://doi.org/10.3390/ma15020581
Chicago/Turabian StyleOh, Se-Beom, Jongbeom Kim, Soon-Woo Han, Kyung-Mo Kim, Dong-Seok Yun, and Dong-Wook Kim. 2022. "Analysis of Platen Superheater Tube Degradation in Thermal Power Plants via Destructive/Non-Destructive Characteristic Evaluation" Materials 15, no. 2: 581. https://doi.org/10.3390/ma15020581