[KSCI] Korea Science Citation Index Service

Studies on the Influence of Various factors in Ultrasonic Flaw Detection in Ferrite Steel Butt Weld Joints

Baby, Sony (Department of Physics, Regional Engineering College)
Balasubramanian, T. (Department of Physics, Regional Engineering College)
Pardikar, R.J. (NDTL, Bharat Heavy Electricals Limited)

Publication Information

Journal of the Korean Society for Nondestructive Testing / v.23, no.3, 2003 , pp. 270-279 More about this Journal

Abstract

Parametric studies have been conducted into the variability of the factors affecting the ultrasonic testing applied to weldments. The influence of ultrasonic equipment, transducer parameters, test technique, job parameters, defect type and characteristics on reliability far defect detection and sizing was investigated by experimentation. The investigation was able to build up substantial bank of information on the reliability of manual ultrasonic method for testing weldments. The major findings of the study separate into two parts, one dealing with correlation between ultrasonic techniques, equipment and defect parameters and inspection performance effectiveness and other with human factors. Defect detection abilities are dependent on the training, experience and proficiency of the UT operators, the equipment used, the effectiveness of procedures and techniques.

Keywords

ultrasonic flaw detection; ferritic steel weld; operator reliability; couplant effect; equipment; transducer;

Citations & Related Records

Reference

1	M. Manimohan, N. D hanasekaran, R J. Pardikar et aI., 'Reliability of manual ultrasonic testing in boiler and pressure vessels,' Journal of Non-Destructive Evaluation, Vol. 16, No.4, pp. 99-101 (Oct-Dec., 1996)
2	A. B. Wooldridge and R. K. Chapman, 'The Effective use of ultrasonic for defect detection ands sizing in steel components,' Improving the Effectiveness and Reliability of Non-Destructive Testing, Edited by W. E. Gardner, Pergamon Press, Oxford, UK, pp. 87-136 (1992)
3	J. Krautkramer and H. Krautkramer, 'Ultrasonic testing of materials,' 3rd Edition, Springer-Verlag, Berlin, Germany (1983)
4	R. A. Murgatroyd, H. Serd, S. Crutzen and Van Den Bergh, 'Human Reliability Studies in P1SC Ill,' 10th International Conference on NDE in the Nuclear and Pressure Vessel Industry, Glasgow, UK (June, 1990)
5	T. T. Taylor, J. C. Spanner, Sh. P. G. Heasler, S. R. Doctor and J. D. Deffenbaugh, 'An evaluation of human reliability in ultrasonic In-service inspection for intergranular stress- corrosion cracks through round-robin testing,' Materials Evaluation, (March, 1989)
6	Johan Enkrist, Anne Edland and Ola Svenson, 'Operator performance in a blind test piece trial,' Materials Evaluation, Vol. 59, No.4, pp. 531-536 (April, 2001)
7	E. Borloo, F. Lakestani and F. Merli, 'PISC II - Parametric study on the effect of ultrasonic characteristics (EEC) on detection, location and sizing,' PISC 1lI Report No. 10 - Final report, Available from Commission of the European Communities, Joint Research Center, Ispra, Italy (July, 1988)
8	N. F. Haines, S. Cruzen and C. J. Vinehc, 'A review of the major PISC II Round-robin test results,' British Journal of NDT, pp. 411-417 (Nov., 1987)
9	S. Crutzen and P. Jehenson, 'The correlation between ultrasonic techniques, equipment, defect parameters and inspection performanceeffectiveness', Improving the Effectiveness and Reliability of Non-Destructive Testing, edited by W. E. Gardner, Pergamon Press., pp. 193-224 (1992)
10	E. R. Green, 'Worst case defects affecting ultrasonic inspection reliability,' Materials Evaluation, Vol. 47, pp. 1401-1407 (Dec.,1969)
11	ASME Section XI, Appendix III
12	B. Watkins, R. W. Errine and K. J. Cowburn, 'The UKAEA defect detection trials,' British Journal of Non-Destructive Evaluation, Vol. 25, No.4 (July, 1983)
13	F. V. Ammirato, GEC, Knolls Atomic Power Laboratory, Schenectady, New York, 'The influencing of reference defect geometry, beam angle and frequency on shear wave ultrasonic test sensitivity,' Materials Evaluation, pp. 45-48 (Feb., 1976)
14	E. E. Borloo, 'PISC II - Parametric studies, RRT on the measurement of ultrasonic instrument and transducer characteristics (MITC),' International Journal of Pressure Vessels & Piping, Vol. 35, Nos. 1-4
15	Giuliano Canella, 'Resonance's and effects of couplant layers in ultrasonic contact testing', Materials Evaluation, pp. 61-66 (April, 1973)
16	D. E. MacDonald and S. M. Walker, 'Effects of ultrasonic equipment variations on crack length measurements,' EPRl NP - 5485, 1987, Available from EPRl Research Reports Center, PO Box 504901, Palo Alto, CA 94305
17	G. J. Posakony, 'Experimental analysis of ultrasonic responses from artificial defects,' Materials Evaluation, Vol. 44, No. 13, pp. 1567-1572 (Dec., 1986)
18	S. Crutzen, P. Jehenson and E. Borloo, 'The PISC II - RRT Plates and their intended defects', British Journal of NDT, pp. 307- 317 (Sep., 1987)