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大学・研究所にある論文を検索できる 「高サイクル繰返し負荷を受ける炭素鋼の応力磁化効果に関する実験的検討」の論文概要。リケラボ論文検索は、全国の大学リポジトリにある学位論文・教授論文を一括検索できる論文検索サービスです。

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高サイクル繰返し負荷を受ける炭素鋼の応力磁化効果に関する実験的検討

安部, 正高 澄川, 貴志 三戸, 慎也 宮澤, 和紀 京都大学 DOI:10.1299/transjsme.22-00319

2023

概要

A magnetic non-destructive inspection method based on measurement of the magnetic flux leakage near the material surface has been studied for carbon steel pipes used in various plants. However, in actual plants, stress fluctuations caused by changes in the temperature and internal pressure of the fluid passing through the pipes may affect the residual magnetization state due to magnetomechanical effect and prevent accurate inspection. In this paper, we applied cyclic stress to pre-magnetized STPG370 carbon steel up to 10⁷ cycles and measured the change of the magnetization state as the change of the magnetic field near the specimen surface. As a result, under the environmental magnetic field, the magnetization (or corresponding magnetic field near the specimen surface) of the specimen decreases significantly after the first few cycles of stress loading, which suggests the magnetization state approaches the anhysteretic (stable) magnetization state. Furthermore, the magnetization gradually decreases further with higher cycles of stress loading.

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参考文献

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[DOI: 10.1299/transjsme.22-00319]

© 2023 The Japan Society of Mechanical Engineers

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[DOI: 10.1299/transjsme.22-00319]

© 2023 The Japan Society of Mechanical Engineers

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