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Ultrasonic inspection of austenitic welds

Abstract

The metallurgical structure of austenitic welds is described and contrasted with that found in ferritic welds. It is shown that this structure imparts a marked elastic anisotropy in the ultrasonic propagation parameters. Measurements of variations in the apparent attenuation of sound and deviations in the beam direction are described. The measurements are interpreted in terms of the measured velocity anisotropy. Two applications of the fundamental work are described. In the first it is shown how, by using short pulse compression wave probes, and with major modification of the welding procedure, a stainless steel fillet weld in an AGR boiler can be inspected. In the second application, alternative designs of a transition butt weld have been compared for ease of ultrasonic inspection. The effects of two different welding processes on such an inspection are described. Finally, the paper examines the prospects for future development of inspection and defect-sizing techniques for austenitic welds. (author)
Authors:
Tomlinson, J R; Wagg, A R; Whittle, M J [1] 
  1. N.D.T. Applications Centre, CEGB, Manchester (United Kingdom)
Publication Date:
Nov 01, 1980
Product Type:
Conference
Report Number:
IWGFR-35
Resource Relation:
Conference: IAEA-IWGFR specialists' meeting on in-service inspection and monitoring of LMFBRs, Bensberg (Germany), 20-22 May 1980; Other Information: 9 refs, 13 figs; PBD: Nov 1980; Related Information: In: Specialists' meeting on in-service inspection and monitoring of LMFBRs. Summary report, 212 pages.
Subject:
42 ENGINEERING; AGR TYPE REACTORS; DEFECTS; STEAM GENERATORS; ULTRASONIC TESTING; WELDED JOINTS
OSTI ID:
20241820
Research Organizations:
International Atomic Energy Agency, International Working Group on Fast Reactors, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA0201100015403
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 82-95
Announcement Date:

Citation Formats

Tomlinson, J R, Wagg, A R, and Whittle, M J. Ultrasonic inspection of austenitic welds. IAEA: N. p., 1980. Web.
Tomlinson, J R, Wagg, A R, & Whittle, M J. Ultrasonic inspection of austenitic welds. IAEA.
Tomlinson, J R, Wagg, A R, and Whittle, M J. 1980. "Ultrasonic inspection of austenitic welds." IAEA.
@misc{etde_20241820,
title = {Ultrasonic inspection of austenitic welds}
author = {Tomlinson, J R, Wagg, A R, and Whittle, M J}
abstractNote = {The metallurgical structure of austenitic welds is described and contrasted with that found in ferritic welds. It is shown that this structure imparts a marked elastic anisotropy in the ultrasonic propagation parameters. Measurements of variations in the apparent attenuation of sound and deviations in the beam direction are described. The measurements are interpreted in terms of the measured velocity anisotropy. Two applications of the fundamental work are described. In the first it is shown how, by using short pulse compression wave probes, and with major modification of the welding procedure, a stainless steel fillet weld in an AGR boiler can be inspected. In the second application, alternative designs of a transition butt weld have been compared for ease of ultrasonic inspection. The effects of two different welding processes on such an inspection are described. Finally, the paper examines the prospects for future development of inspection and defect-sizing techniques for austenitic welds. (author)}
place = {IAEA}
year = {1980}
month = {Nov}
}