Skip to main content
SpringerLink
Log in

Investigating the Possibilities of Assessing the State of the Metal Structure of Pipelines in Service by Ultrasonic Method

  • ACOUSTIC METHODS
  • Published:
Russian Journal of Nondestructive Testing Aims and scope Submit manuscript

Abstract—

The results of the first stage of ultrasonic studies of the metal structure of pipelines of thermal power plants in operation are presented. The tests were carried out on metal of steel grades 15Kh1M1F and St20 with different operating life (operating time). The metal samples were subjected to metallographic analysis, the received data (the average grain size \(\bar {D},\) the distribution variance \(\ln D{\kern 1pt} - {\kern 1pt} {{\sigma }_{D}}\)) was used for theoretical calculation of the parameters of ultrasonic pulses of the bottom signal in metal. Quantitative data were obtained on the effect of the thickness of the couplant layer (the gap) between the transducer and the test object at operating frequencies of 5.0, 7.5 and 10 MHz for various values of the average grain size in metal. Examples of calculated and experimental pulses and signal spectra for a frequency of 5 MHz are given.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.
Fig. 7.

Similar content being viewed by others

REFERENCES

  1. IAEA Safety Standards, Special Safety Guide No. SSG-48. Aging management and development of a long-term operation program for nuclear power plants, 2018.

  2. IAEA Safety Standards, Special Safety Guide No. SSG-25. Periodic safety analysis of nuclear power plants, 2013.

  3. Shcherbinskii, V.G., Ultrasonic structuroscopy and tensometry of metals: A review, Tyazh. Mashinostr., 2016, nos. 3–4, pp. 2–8.

  4. Smirnov, A.N., Ababkov, N.V., Murav’ev, V.V., and Fol’mer, S.V., Criteria for the evaluation of the technical state of the long-lived metal of HPP equipment based on acoustic structuroscopy, Russ. J. Nondestr. Test., 2015, vol. 51, no. 2, pp. 94–100.

    Article  Google Scholar 

  5. Tyutin, M.R., Botvina, L.R., Levin, V.P., Efimov, A.G., and Kuzelev, N.R., Investigation of mechanical properties of structural steels by acoustic and magnetic methods, Zavod. Lab., Diagn. Mater., 2017, vol. 83, no. 7, pp. 44–48.

    Google Scholar 

  6. Murav’ev, V.V., Zlobin, D.V., Lenkov, S.V., and Zverev, N.N., A device for measuring the speed of acoustic waves in metals and alloys, Instrum. Exp. Tech., 2016, no. 3, pp. 142–146.

  7. Murav'eva, O.V., Murav’ev, V.V., Gabbasova, M.A., Buldakova, I.V., and Sokov, M.Yu., Analysis of reflected signals in testing cylindrical specimens by the multiple reflection echo-shadow method, Optoelectron. Instrum. Data Process., 2016, vol. 52, no. 4, pp. 1–7.

    Article  Google Scholar 

  8. Merkulova, V.M., Influence of the grain size distribution on the attenuation of ultrasonic waves, Defektoskopiya, 1970, no. 2, pp. 111–113.

  9. Kesler, N.A. and Shreifeld, L.I., Investigation of ultrasound scattering taking into account the statistics of the grain size distribution of polycrystalline metals, Defektoskopiya, 1975, no. 1, pp. 95–100.

  10. Danilov, V.N., Calculation of the damping coefficient of elastic waves for scattering in polycrystalline media, Defektoskopiya, 1989, no. 8, pp. 18–23.

  11. Ermolov, I.N. and Lange, Yu.V., Nerazrushayuschii Kontrol’. Spravochnik v 7 tomakh (Nondestructive testing. Handbook in 7 Vols.), Moscow: Mashinostroenie, vol. 3, 2008.

  12. Ermolov, I.N., Kontrol’ Ul’trazvukom (kratkii spravochnik) (Ultrasound Control (A Quick Guide)), Moscow: NPO TSNIITMASH, 1992.

  13. Merkulov, L.G. and Merkulova, V.M., Lektsii po teorii ul’trazvuka (Lectures on Theory of Ultrasound), Taganrog: TRTI, 1976.

  14. Dymkin, G.Ya. and Kadikova, M.B., An ultrasonic method for quantitative evaluation of the metal structure of axles of wheel pairs, Russ. J. Nondestr. Test., 2009, vol. 45, no. 7, pp. 464–471.

    Article  CAS  Google Scholar 

  15. Danilov, V.N., A program for computer simulation of the operation of electroacoustic channels of IMPULSE+ flaw detectors, Russ. J. Nondestr. Test., 2006, vol. 42, no. 3, pp. 174–180.

    Article  Google Scholar 

  16. Danilov, V.N. and Voronkova, L.V., Investigation of the possibilities of ultrasonic testing of lamellar graphite cast iron using standard normal transducers, Kontrol. Diagn., 2020, no. 1, pp. 4–18.

  17. Velev, B., Ivanov, I., and Kamenov, V., Automated system for complex non-destructive testing of the structure and mechanical properties of mechanical engineering materials, Russ. J. Nondestr. Test., 2021, vol. 57, no. 3, pp. 203–211.

    Article  Google Scholar 

Download references

ACKNOWLEDGMENTS

The authors are grateful to Cand. Sci. (Eng.) D.M. Davydov for preparing metal samples for metallographic research and Cand. Sci. (Eng.) A.S. Gudenko for carrying out work on metallography.

Author information

Authors and Affiliations

  1. AO NPO CNIITMASH, 115088, Moscow, Russia

    V. N. Danilov, V. M. Ushakov & A. I. Rymkevich

Authors
  1. V. N. Danilov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. M. Ushakov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. I. Rymkevich
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding authors

Correspondence to V. N. Danilov or V. M. Ushakov.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Danilov, V.N., Ushakov, V.M. & Rymkevich, A.I. Investigating the Possibilities of Assessing the State of the Metal Structure of Pipelines in Service by Ultrasonic Method. Russ J Nondestruct Test 57, 635–646 (2021). https://doi.org/10.1134/S1061830921080052

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1061830921080052

Keywords:

Search

Navigation