10.14489/td.2015.12.pp.009-015

2015, 12 December

DOI: 10.14489/td.2015.12.pp.009-015

Badalyan V.G., Vopilkin A.Kh.
AUTOMATED ULTRASONIC TESTING OF WELDED WELDS INSTEAD OF RADIOGRAPHIC TESTING
(pp. 9-15)

Abstract. It is dealt with the advantages and disadvantages of radiography and automated ultrasonic testing with a coherent data processing (AUT). Тhe information content and sensitivity of these methods are compared. The possibilities of measuring the size of defects in radiographic and ultrasonic examination are analyzed. It is affirmed that detection and error in determining the geometric dimensions of the defects in the AUT with a coherent treatment of data is sufficient for practical purposes. It gives an example of application of the system with a coherent treatment of data for testing the austenitic welds in pipelines with considerable thickness up to 45 mm. Pipes are used in the construction of a catalytic cracking unit. Timekeeping works showed that the performance of one AUT-welded joints of 50834 mm didn`t exceed 60 minutes with the possibility of other installation.

Keywords: radiographic testing, automated ultrasonic testing, the information content of testing, sensitivity, measurement of defect sizes.

+ - About the Authors Click to collapse

V. G. Badalyan, A. Kh. Vopilkin
Co Ltd “Scientific Production Center of Nondestructive Ultrasonic Testing “ECHO+”, Moscow, Russia. Е-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Gurvich A. K. (1999). Is the method of radiography of welded joints impartial? V mire nerazrushaiushchego kontrolia, (3), p. 24.
2. Rozina M. V. (1999). Ultrasound or radiography? V mire nerazrushaiushchego kontrolia, (3), p. 25.
3. Use of ultrasonic examination in Liue of radiography. (1996). ASME CASE 2235-4. December 23, 1996.
4. Non-destructive testing of welds – General rules for metallic materials. (2010). International Standard No. BS EN ISO 17635:2010.
5. Nondestructive testing. Welded joints of pipelines. Radiographic method. (1985). Industry Standard. No. OST 102-51–85. Russian Federation. Moscow.
6. Nondestructive testing. Welded joints. Radiographic method. (1982). Ru Standard No. GOST 7512–82. Russian Federation. Moscow.
7. Vopilkin A. Kh. (1985). Diffraction waves and their application in ultrasonic nondestructive testing (Review). Defektoskopiia, (2), pp. 72-85.
8. Badalian V. G. (2007). Assessment of testing results based on acoustic images. Defektoskopiia, (4), pp. 39-58.
9. Bazulin E. G. (2013). Comparison of systems for ultrasonic nondestructive testing using antenna arrays or phased antenna arrays. Defektoskopiia, (7), pp. 51-75.
10. Bazulin E. G., Vopilkin A. Kh., Tikhonov D. S. (2012). Application of diffraction waves for ultrasonic defects measurement in algorithms of coherent recovery of high-quality images of reflectors. V mire nerazrushaiushchego kontrolia, 57(3), pp. 20-25.
11. Badalian V. G., Bazulin E. G., Vopilkin A. Kh. et al. (2008). Ultrasonic measurement of defects in metals using holographic methods. Moscow: Mashinostroenie.
12. «AVEK» – non-destructive testing equipment. Available at: http://avek.ru/
13. Badalian V. G. (2003). Inaccuracy in measurement of defects using systems with coherent data processing. Defektoskopiia, (3), pp. 12-23.
14. Shcherbinskii V. G. (2003). The technology of ultrasonic testing of welded joints. Moscow: Tisso–M.
15. Testing rules of the base metal, welded joints and deposited surfaces during operation of equipment, pipelines and other elements of atomic station: draft. (2015). The Federal service for ecological, technological and nuclear supervision. Moscow.
16. The method of calculation and norms of permissible defect sizes in welded joints of the pipelines of Du300 RBMK reactors. Guided documents No. RD EO 0489–03. Moscow.
17. Commissioning of the norms of the defects and the frequency of operation testing of welded joints of the pipes of Du300 NE RBMK reactor susceptible to intergranular stress corrosion cracking under tension with ring cracks based on the results of the ultrasonic inspection. (2012). Solution No. ASR-368K (04-03)2012. Moscow.
18. Vopilkin A. Kh., Romashkin S. V., Tikhonov D. S. (2015). Application of modern techniques of automated ultrasonic testing of technological pipelines made from austenitic steels instead of radiographic inspection. Khimicheskaia tekhnika, (4), pp. 28-31.
19. The method of automated ultrasonic testing of butt welded joints of process pipelines of water from the austenitic steels using the «AVGUR-T» system. Moscow.
20. Rules of arrangement and safe operation of process pipelines. (2003). Safety Rules No. PB 03-585–03. Moscow.
21. Badalian V. G. (2010). Defects parameters assessment automation in automated ultrasonic inspection systems with coherent data processing. Kontrol'. Diagnostika, (1), pp. 57-64.

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

The cost of a single article is 350 rubles. (including VAT 18%). After you place an order within a few days, you will receive following documents to your specified e-mail: account on payment and receipt to pay in the bank.

After depositing your payment on our bank account we send you file of the article by e-mail.

To order articles please fill out the form below: