Ultrasonic test data acquisition and defect verification of stainless-steel welds at 400/sup 0/F. [LMFBR]

Conference · Sat Jan 01 00:00:00 EST 1983

OSTI ID:6026386

Mech, S J

This paper describes techniques developed to characterize the features found during ultrasonic examination of stainless steel welds which are indicative of defects. Feature inspection technology allows reliable discrimination weld signals and other noise under remote, automatic, high temperature conditions. Ultrasonic feature inspection techniques have been successfully implemented under 400/sup 0/F (200/sup 0/C) flowing sodium pipe welds. The challenge is to develop techniques which find defects, but ignore variations associated with the normal cast type microstructure of the weld zone. This study was directed at gathering data on a welded pipe section with notches used to simulate defects and is an example of computer acquisition and analysis techniques of ultrasonic data. Various analysis methods were compared to find signal analysis algorithms sensitive to these simulated defects.

• Research Organization: Hanford Engineering Development Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76FF02170
• OSTI ID: 6026386
• Report Number(s): HEDL-SA-2895-FP; CONF-830485-1; ON: DE83012146
• Resource Relation: Conference: 64. annual American Welding Society meeting, Philadelphia, PA, USA, 24 Apr 1983; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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PRIMARY COOLANT CIRCUITS
WELDED JOINTS
ULTRASONIC TESTING
DEFECTS
PIPES
STAINLESS STEELS
TEST FACILITIES
ACOUSTIC TESTING
ALLOYS
BREEDER REACTORS
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COOLING SYSTEMS
CORROSION RESISTANT ALLOYS
ENERGY SYSTEMS
EPITHERMAL REACTORS
FAST REACTORS
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IRON ALLOYS
IRON BASE ALLOYS
JOINTS
LIQUID METAL COOLED REACTORS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
STEELS
TESTING
210500* - Power Reactors
Breeding