Ultrasonic test procedure for evaluating fuel clad endcap weld joints of PHWRs

Subramanian, C. V. ; Thavasimuthy, M. ; Rajagopalan, C. ; Kalyanasundaram, P. ; Baldev Raj, (1995) Ultrasonic test procedure for evaluating fuel clad endcap weld joints of PHWRs Materials Evaluation, 53 (11). pp. 1290-1295. ISSN 0025-5327

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Abstract

This paper describes the application of ultrasonic test method and digital signal analysis techniques for the detection of fine defects of {approx_equal}10 percent of wall thickness in resistance welded endcap-clad tube joints of fuel elements used in pressurized heavy water reactors (PHWRs). Standardization of test methodology was carried out using reference defects made on inner an outer surface of the weld region and subsequently, testing wa carried out on a number of endcap weld joint suspected to have natural defects which were rejected in the helium leak testing. The results obtained were further validated by destructive metallography, thereby confirming the sensitivity and reliability of the developed test methodology.

Item Type:Article
Source:Copyright of this article belongs to American Society for Nondestructive Testing.
ID Code:90618
Deposited On:11 May 2012 07:30
Last Modified:11 May 2012 07:30

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