Amplitude, 6 dB drop, multi-wave mode, TOFD and phased array are the primary flaw sizing methods for ultrasonic testing. Of these, the most common methods are TOFD and phased arrays. TOFD is most accurate but requires a certain type of setup and imaging display.
API, API RP 5UE: Recommended Practice for Ultrasonic Evaluation
of Pipe Imperfections, 2nd ed., American Petroleum
Institute, Washington, DC, 2005.
ASME, Code Case 2235-9: Use of Ultrasonic Examination in
Lieu of Radiography Section I; Section VIII, Divisions 1 and
2; and Section XII, American Society of Mechanical Engineers,
New York, New York, 2009.
ASME, Rules for Construction of Pressure Vessels, Boiler and
Pressure Vessel Code, Section VIII, Division 1, Mandatory
Appendix 12, American Society of Mechanical Engineers,
New York, New York, 2010.
ASTM, E-2192-08: Standard Guide for Planar Flaw Height
Sizing by Ultrasonics, American Society for Testing of Materials,
West Conshohocken, Pennsylvania, 2009.
ASTM, E2373-09: Standard Practice for Use of Ultrasonic
Time of Flight Diffraction (TOFD) Technique, American
Society for Testing of Materials, West Conshohocken, Pennsylvania,
2009.
Birring, A. S., “Selection of Phased Array Parameters for
Weld Testing,” Materials Evaluation, Vol. 66, No. 9, 2008,
pp. 931–933.
Birring, A. S. and G. P. Singh, “Sizing of Longitudinal Seam
Weld Flaws in Thin-walled Tubes by Ultrasonic Methods,”
Proceedings of the Thirteenth Symposium on Nondestructive
Evaluation, San Antonio, Texas, 1981, pp. 161–172.
Blanshan , B. and E. Ginzel, “The Truth Behind Creeping
Waves,” Materials Evaluation, Vol. 66, No. 5, 2008,
pp. 465–470.
CEN, CEN/TS 14751:2004, Welding – Use of Time-of-Flight
Diffraction Techniques (TOFD) for Examination of Welds,
European Committee for Standardization, Brussels,
Belgium, January 2005.
Gruber, G. J. and J. A. G. Temple, “Modeling the Performance
of the SLIC-40 and SLIC-50 Multibeam Transducers,”
Proceedings of the 4th European Conference on NDT,
London, England, September 1987, pp. 704–724.
Krautkramer, J. and H. Krautkramer, Ultrasonic Testing of
Materials, 4th ed., Springer-Verlag, New York, 1990.
Silk, M. G., “Sizing Crack-like Defects by Ultrasonic Means,”
Research Techniques in Nondestructive Testing, Vol. III,
Chapter 2, Academic Press, London, England, 1977.
Silk, M.G., “Defect Sizing Using Ultrasonic Diffraction”
British Journal of Non-Destructive Testing, Vol. 21, No. 1,
1979, pp. 12–15.
van Esser, S., W. B. Veldhuis, R. van Hillegersberg, P. J. van
Diest, G. Stapper, M. El Ouamari, I. H. M. Borel Rinkes, W. P.
Th. M. Mali and M. A. A. J. van den Bosch, “Accuracy of
Contrast-enhanced Breast Ultrasound for Pre-operative
Tumor Size Assessment in Patients Diagnosed with Invasive
Ductal Carcinoma of the Breast,” Cancer Imaging, Vol. 7,
No. 1, 2007, pp. 63–68.