Evaluation of a Failed Water Wall Boiler Tube |
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| Authors: | Neal Hanke |
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| Affiliation: | (1) Materials Evaluation and Engineering, Inc., 13805 1st Avenue North Suite 400, Plymouth, MN 55441, USA |
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| Abstract: | A metallurgical evaluation was performed to investigate a crack in a lateral water wall boiler tube. The 2.5-in. diameter, carbon-steel tube was removed from a 125 MW coal-fired boiler used for base load electric power generation. Visual examination, microstructure characterization, and SEM/EDS analysis were used to determine that hydrogen damage was the primary failure mechanism. |
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