Development of ultrasonic examination methods for austenitic stainless steel weld inspection

Journal Article · Fri Jul 01 00:00:00 EDT 1977 · Mater. Eval.; (United States)

OSTI ID:7316645

Mech, S J; Michaels, T E

Signal acquisition and analysis techniques were developed to permit locating notches placed in an austenitic stainless steel pipe weld. This ultrasonic technique utilized a refracted longitudinal inspection beam with a dual element, pitch-catch transducer. Data were analyzed in both time and frequency domains, and a simple frequency moment algorithm was developed which is sensitive to defect signal and somewhat insensitive to grain noise. Sources of grain noise and the metallurgical implications of inspecting austenitic stainless steel welds are reviewed.

• Research Organization: Hanford Engineering Development Lab., Richland, WA
• OSTI ID: 7316645
• Journal Information: Mater. Eval.; (United States), Journal Name: Mater. Eval.; (United States) Vol. 35:7; ISSN MAEVA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420500* -- Engineering-- Materials Testing
ACOUSTIC TESTING
ALGORITHMS
ALLOYS
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
DATA ANALYSIS
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MATERIALS TESTING
MATHEMATICAL LOGIC
NONDESTRUCTIVE TESTING
PIPES
STAINLESS STEELS
STEELS
TESTING
ULTRASONIC TESTING
WELDED JOINTS