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- CHIDA Itaru
- Toshiba Energy Systems & Solutions Corporation
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- HIROTA Keiichi
- Toshiba Energy Systems & Solutions Corporation
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- SAITO Kazuhiro
- Toshiba Energy Systems & Solutions Corporation
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- NISHIOKA Tsurugi
- Toshiba Energy Systems & Solutions Corporation
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- YOSHIDA Yosuke
- Toshiba Energy Systems & Solutions Corporation
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- HARA Yu
- Toshiba Energy Systems & Solutions Corporation
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- HATAKEYAMA Kazuki
- Tokyo Electric Power Company Holdings, Inc.
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- BABA Toshiki
- Tokyo Electric Power Company Holdings, Inc.
Bibliographic Information
- Other Title
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- レーザピーニングによる原子力タービンの疲労強度改善に関する検討
Abstract
<p>Some damage was found at the forks of low-pressure turbine blades caused by steam-flashback vibration at nuclear power plant. As countermeasure against vibration during operation, laser peening for turbine blade was investigated and effectiveness was evaluated by material tests. 12 Cr stainless steel test pieces with pin hole were fabricated and laser peening was performed on the surface. As the result of material evaluation, it was confirmed that compressive residual stress was induced to the material surface by laser peening and fatigue strength was improved about 30% compared to unpeened test pieces. In the near future, laser peening will be applied to turbine blades to improve plant reliability.</p>
Journal
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- The Proceedings of the National Symposium on Power and Energy Systems
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The Proceedings of the National Symposium on Power and Energy Systems 2023.27 (0), B222-, 2023
The Japan Society of Mechanical Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390018120874036736
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- ISSN
- 24242950
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed