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Subsurface defects in cast irons

โœ Scribed by Charles W. McCauley Jr.; T.S. Sudarshan


Publisher
Elsevier Science
Year
1979
Weight
828 KB
Volume
12
Category
Article
ISSN
0026-0800

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๐Ÿ“œ SIMILAR VOLUMES


Detecting defect in cast iron using high
โœ D.F. He; M. Yoshizawa; Y. Oyama; M. Nakamura ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 310 KB

For eddy-current NDE, due to the big permeability of ferromagnetic material, low testing frequency is needed to detect defects in it. SQUID has advantages in low frequency eddy current NDE. But the large magnetic field produced by ferromagnetic material often exceeds the dynamic range of general SQU