The present study has attempted to analyze the distributions of vertical magnetic flux density Bz above growing fatigue cracks subjected to various stress ratios R in SUS 304 stainless steel in which plasticity-induced martensitic transformation has occurred at room temperature in air. FEM calculations have been made to obtain Bz distributions above fatigue cracks by using composite permanent magnet models. The martensitic transformation regions around fatigue cracks were modeled as composites of permanent magnets having different B-H properties varying according to the content of α′ martensitic phase transformed. The resultant distributions of leakage magnetic flux density above fatigue cracks obtained by FEM agree well with those obtained by experiments.
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ASME/JSME 2004 Pressure Vessels and Piping Conference
July 25–29, 2004
San Diego, California, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4677-6
PROCEEDINGS PAPER
FEM Analysis of Magnetic Field Induced by Martensitic Phase Transformation Around Fatigue Cracks in SUS 304 Stainless Steel
Yuji Nakasone,
Yuji Nakasone
Tokyo University of Science, Tokyo, Japan
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Yoshifumi Iwasaki
Yoshifumi Iwasaki
Tokyo University of Science, Tokyo, Japan
Search for other works by this author on:
Yuji Nakasone
Tokyo University of Science, Tokyo, Japan
Yoshifumi Iwasaki
Tokyo University of Science, Tokyo, Japan
Paper No:
PVP2004-2769, pp. 239-244; 6 pages
Published Online:
August 12, 2008
Citation
Nakasone, Y, & Iwasaki, Y. "FEM Analysis of Magnetic Field Induced by Martensitic Phase Transformation Around Fatigue Cracks in SUS 304 Stainless Steel." Proceedings of the ASME/JSME 2004 Pressure Vessels and Piping Conference. Computer Technology and Applications. San Diego, California, USA. July 25–29, 2004. pp. 239-244. ASME. https://doi.org/10.1115/PVP2004-2769
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