Abstract
A first stage compressor blade of a gas turbine failed after a long period of operating onshore. Initial investigations showed that there were some pits and micro-cracks on the pressure side of the blade created by erosion and corrosion mechanisms. In this research, experimental examinations were conducted on erosion, corrosion, and interaction between erosion and corrosion of the samples extracted from the compressor blade under simulated blade operation conditions such as high-velocity erosion and corrosive medium. The results reveal that erosion and corrosion pits can severely appear on the blade in real operation conditions, leading to a large reduction in crack initiation time, which has the longest time period in the fatigue life.
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Acknowledgements
The authors would like to thank Dr. Zamani, the manager of the environmental sciences laboratory of the University of Zanjan and Mr. Rezaei, the head of the measurement department of Zanjan Gas Company for their equipment support.
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Poursaeidi, E., Mohammadi Niaei, A., Lashgari, M. et al. Experimental studies of erosion and corrosion interaction in an axial compressor first stage rotating blade material. Appl. Phys. A 124, 629 (2018). https://doi.org/10.1007/s00339-018-2007-5
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DOI: https://doi.org/10.1007/s00339-018-2007-5