Automated pipe scanner for ultrasonic inspection. Final report

Technical Report · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5245192

Fleming, M; Mitchell, R; Humphries, J; De La Torre, D; Levin, S; Jacobs, B; Beller, L; Mikesell, C

The need for reliable, accurate, and repeatable examination of piping welds in boiling-water-reactor (BWR) systems has received considerable attention in recent years because of increasing occurrences of intergranular stress-corrosion cracking (IGSCC) in the austenitic stainless steel piping used in these systems. This report describes the results of a program designed to develop automated, remotely controlled scanner mechanisms and booted ultrasonic search units for pipe weld examinations. The principal scanner development goals have been achieved. These goals include scanners of low profile, easy portability, rapid installation and removal and accurate and repeatable scan capabilities over a wide range of pipe diameters. Additional accomplishments are booted search unit designs that provide universal adaptability to pipe inspection surface geometries and a multi-refracted-angle inspection capability within a single search unit.

• Research Organization: Amdata Systems, Inc., San Jose, CA (USA)
• OSTI ID: 5245192
• Report Number(s): EPRI-NP-3406; ON: DE84920281
• Country of Publication: United States
• Language: English

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ACOUSTIC TESTING
ALLOYS
BWR TYPE REACTORS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CORROSION
CORROSION RESISTANT ALLOYS
INTERGRANULAR CORROSION
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
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NONDESTRUCTIVE TESTING
PIPES
REACTORS
STAINLESS STEELS
STEELS
STRESS CORROSION
TESTING
ULTRASONIC TESTING
WATER COOLED REACTORS
WATER MODERATED REACTORS
WELDED JOINTS