Electromagnetic modeling of fatigue cracks in plant environment for eddy current testing

Tetsuya Uchimoto, Toshiyuki Takagi, Keitaro Ohtaki, Yoichi Takeda, Akira Kawakami

研究成果: Article査読

5 被引用数 (Scopus)


This study discusses the electromagnetic modeling of fatigue cracks in plant environment to improve accuracy of depth sizing with eddy current testing. For the purpose, the factors that influence eddy current signals of fatigue cracks are evaluated. Here, martensitic layer and oxide fillings in fatigue cracks are focused on as influencing factors, and oxides are systematically filled in fatigue cracks by thermal treatment. The measured EC signals change depending on the presence and type of filling oxides. Numerical simulations are conducted to discuss the electromagnetic modeling of cracks with oxide fillings. The types of oxides in the cracks are identified by Raman spectroscopy, and the martensitic layers in vicinity of crack faces are observed by magnetic force microscopy. These results support for the electromagnetic model of environmental fatigue cracks developed in this study.

ジャーナルInternational Journal of Applied Electromagnetics and Mechanics
出版ステータスPublished - 2012

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 材料力学
  • 機械工学
  • 電子工学および電気工学


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