Combining eddy current and magnetic flux leakage for tank floor inspection

Journal Article · Fri Jul 01 00:00:00 EDT 1994 · Materials Evaluation; (United States)

OSTI ID:7177017

You, Z; Bauer, D ^[1]

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1. Magnetic Analysis Corp., Mount Vernon, NY (United States)

Magnetic flux leakage (MFL) test technology has been applied to the inspection of aboveground storage tank (AST) bottoms since the late 1980s, when it was demonstrated that corrosion in flat carbon steel tank floor plates up to 10 mm (0.4 in.) thick could be detected using MFL techniques. This article will discuss a method that combines eddy current and MFL methods into one test probe design. This design not only detects discontinuities on the top and bottom sides of the tank bottom, but also discriminates between them.

• OSTI ID: 7177017
• Journal Information: Materials Evaluation; (United States), Journal Name: Materials Evaluation; (United States) Vol. 52:7; ISSN MAEVAD; ISSN 0025-5327
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
022000 -- Petroleum-- Transport
Handling
& Storage
42 ENGINEERING
420205* -- Engineering-- Transport & Storage Facilities-- (1980-)
CHEMICAL REACTIONS
CONTAINERS
CORROSION
DESIGN
DETECTION
EDDY CURRENT TESTING
ELECTROMAGNETIC TESTING
FLOORS
MAGNETIC TESTING
MATERIALS TESTING
NONDESTRUCTIVE TESTING
PROBES
STORAGE FACILITIES
TANKS
TESTING