Thermal Stress in Volcanic-Ash-Deposited Thermal Barrier Coatings Monitored by Long-Range Laser System

Masayuki Arai; Daichi Yamaura

doi:10.4028/www.scientific.net/KEM.713.293

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Influence of Compressive Stress to the Corrosion Rate of Magnesium
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Temperature Robust PCA Based Stress Monitoring Approach
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 713Thermal Stress in Volcanic-Ash-Deposited Thermal...

Thermal Stress in Volcanic-Ash-Deposited Thermal Barrier Coatings Monitored by Long-Range Laser System

Abstract:

All thermal power plants including gas turbine (GT) of Tokyo electric company are located along Tokyo bay. If Mt. Fuji is exploded, volcanic ash is fallen down in Kanto area. If volcanic ash is inhaled into GTs, the ash would be firstly impacted and deposited onto thermal barrier coating (TBC) of the blades. Such deposition of the volcanic ash causes the delamination of the ceramic coating. In this study, TBC delamination mechanisms due to the volcanic ash deposition is discussed based upon thermal stress evaluated by a laser monitoring measurement system.

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Periodical:

Key Engineering Materials (Volume 713)

Pages:

293-296

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.713.293

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Online since:

September 2016

Authors:

Masayuki Arai*, Daichi Yamaura

Keywords:

Delamination, Gas Turbine, Laser Monitoring, TBC, Thermal Stress, Volcanic Ash

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* - Corresponding Author

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