Email this article Digital measurements of non-metallic inclusions in steel
- Authors: Stukalova N.A.1, Kodirov D.F.1, Alekseev V.I.1, Sokolovskaya E.A.1, Rodionova I.G.2
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Affiliations:
- University of Science and Technology MISIS
- State Research Center FSUE I.P. Bardin Central Research Institute of Ferrous Metallurgy
- Issue: No 1 (2024)
- Pages: 95-103
- Section: Articles
- URL: https://vektornaukitech.ru/jour/article/view/911
- DOI: https://doi.org/10.18323/2782-4039-2024-1-67-9
- ID: 911
Cite item
Abstract
The experience of many-year research has shown that optimizing the steel chemical composition and microstructural characteristics, as well as reducing its contamination with non-metallic inclusions (NMI), it is possible to significantly increase the corrosion resistance of oilfield pipeline steels and increase the time of their trouble-free operation. The influence of complex NMIs on the steel corrosion resistance is determined by both the chemical composition of NMIs and their quantitative ratios. Therefore, obtaining metal products of the required quality is possible only when using the “control by structure” principle. In the work, based on the analysis of brightness fields of images (on a sample scale) in 256 shades of gray, the authors proposed digital, metrologically supported procedures for measuring the NMI heterogeneity of low-carbon oilfield steels: eliminating the heterogeneity of field illumination, justifying the criteria for binarization and noise filtering. For low-carbon steels of various types of melting, the authors identified the key role of dispersed non-metallic inclusions ranging in size from 5–10 μm2 to 2 nm2 in the formation of the corrosion resistance of steels. This may explain why, in some cases, there is no interrelation between the corrosion rate and the fracture resistance of steels, the formation of which is determined by larger particles. When representing the NMI as a set of random points on the plane, the distribution of distances between the nearest ones is estimated based on Voronoi polyhedra statistics. The study shows that an increase in the kurtosis coefficient of distributions of polyhedra areas is accompanied by an increase in the corrosion rate of the steels under study. This indicates the negative impact of heterogeneity in the arrangement of dispersed NMIs on the corrosion resistance of steels.
About the authors
Natalia A. Stukalova
University of Science and Technology MISIS
Email: stukalova-n@mail.ru
ORCID iD: 0009-0007-3455-4457
postgraduate student
Россия, 119049, Russia, Moscow, Leninsky Prospekt, 4, block 1Davronjon F. Kodirov
University of Science and Technology MISIS
Author for correspondence.
Email: DFKodirov@yandex.ru
ORCID iD: 0009-0003-5380-5558
postgraduate student
Россия, 119049, Russia, Moscow, Leninsky Prospekt, 4, block 1Valeriy I. Alekseev
University of Science and Technology MISIS
Email: alval7@yandex.ru
postgraduate student
Россия, 119049, Russia, Moscow, Leninsky Prospekt, 4, block 1Elina A. Sokolovskaya
University of Science and Technology MISIS
Email: Sokolovskaya@misis.ru
ORCID iD: 0000-0001-9381-9223
PhD (Engineering), Associate Professor, assistant professor of Chair of Metal Science and Physics of Strength
Россия, 119049, Russia, Moscow, Leninsky Prospekt, 4, block 1Irina G. Rodionova
State Research Center FSUE I.P. Bardin Central Research Institute of Ferrous Metallurgy
Email: igrodi@mail.ru
ORCID iD: 0000-0003-4201-4665
Doctor of Sciences (Engineering), Associate Professor, Deputy Director of the Scientific Center for Physical and Chemical Fundamentals and Technologies of Metallurgy
Россия, 105005, Russia, Moscow, Radio Street, 23/9, block 1References
- Shtremel M.A. The issues of metallurgical quality of steel (non-metallic inclusions). Metal Science and Heat Treatment, 1980, no. 8, pp. 2–6.
- Gulyaev A.P. Chistaya stal [Pure steel]. Moscow, Metallurgiya Publ., 1975. 184 p.
- Vinograd M.I. Vklyucheniya v stali i ee svoystva [Steel inclusions and its properties]. Moscow, Metallurgizdat Publ., 1963. 252 p.
- Zerbst U., Madia M., Klinger C., Bettge D., Murakami Y. Defects as a root cause of fatigue failure of metallic components. II: Non-metallic inclusions. Engineering Failure Analysis, 2019, vol. 98, pp. 228–239. doi: 10.1016/j.engfailanal.2019.01.054.
- Liu Hanze, Zhang Shikun, Zhang Jing, Ren Qiang, Zhang Lifeng, Ge Yanfeng. Properties of typical non-metallic inclusions in steel: First-principles calculations. Materials Today Communications, 2023, vol. 34, article number 105118. doi: 10.1016/j.mtcomm.2022.105118.
- Costa e Silva A. The effects of non-metallic inclusions on properties relevant to the performance of steel in structural and mechanical applications. Journal of Materials Research and Technology, 2019, vol. 8, no. 2, pp. 2408–2422. doi: 10.1016/j.jmrt.2019.01.009.
- Vyboyshchik M.A., Ioffe A.V. Scientific basis of development and the methodology of creation of steels for the production of oilfield casing and tubular goods with the increased strength and corrosion resistance. Vektor nauki Tolyattinskogo gosudarstvennogo universiteta, 2019, no. 1, pp. 13–20. doi: 10.18323/2073-5073-2019-1-13-20.
- Amezhnov A.V., Rodionova I.G. Influence of chemical and phase composition of non-metallic inclusions on corrosion resistance of carbon and low alloy steels in water mediums typical for oilfield pipelines operating conditions. Metallurgist, 2019, vol. 63, no. 7-8, pp. 717–726. EDN: KBDKLV.
- Kazakov A.A., Murysev V.A., Kiselev D.V. Interpretation of nature of non-metallic inclusions in assessing the quality of metal products in the industrial conditions. Chernye metally, 2021, no. 9, pp. 47–54. doi: 10.17580/chm.2021.09.08.
- Passigatti S.T.P., de Oliveira M.S., de Oliveira J.R., de Souza R.M., Vieira E.A. On the comparative inclusion analysis in steels: Spark-DAT, ASCAT and optical microscopy. Journal of Materials Research and Technology, 2022, vol. 19, pp. 4745–4755. doi: 10.1016/j.jmrt.2022.06.155.
- Barbosa C., de Campos J.B., do Nascimento J.L., Caminha I.M.V. Quantitative study on nonmetallic inclusion particles in steels by automatic image analysis with extreme values method. Journal of Iron and Steel Research International, 2009, vol. 16, pp. 18–21. doi: 10.1016/S1006-706X(09)60054-6.
- Kudrya A.V., Sokolovskaya E.A., Perezhogin V.Yu., Kodirov D.F. On taking into account the statistical nature of objects in structural analysis in metals science. Russian metallurgy (Metally), 2020, vol. 2020, no. 12, pp. 1435–1438. doi: 10.1134/S0036029520120149.
- Kudrya A.V., Sokolovskaya E.A., Perezhogin V.Yu., Kha N.N. Some practical concerns related to computer procedures of processing images in material science. Vektor nauki Tolyattinskogo gosudarstvennogo universiteta, 2019, no. 4, pp. 35–44. doi: 10.18323/2073-5073-2019-4-35-44.
- Gonsales R.S., Vuds R.E. Tsifrovaya obrabotka izobrazheniy [Digital Image Processing]. Moscow, Tekhnosfera Publ., 2012. 1104 p.
- Sokolovskaya E.A., Kudrya A.V., Perezhogin V.Yu., Tang V.P., Kodirov D.F.U., Sergeyev M.I. Possibilities of measurement digitalization in metal science for the introduction of quantitative measurement to the evaluation of structures and fractures. Metallurgist, 2022, vol. 66, no. 7, pp. 792–804. doi: 10.1007/s11015-022-01390-3.
- Kazakov A.A., Kiselev D.V., Kazakova E.I. Quantitative methods for assessing the microstructure of steel and alloys for revising outdated GOST standards. Lite i metallurgiya, 2021, no. 2, pp. 42–48. doi: 10.21122/1683-6065-2021-2-42-48.
- McHugh S.T. Understanding Photography. Master Your Digital Camera and Capture That Perfect. San Francisco, No Starch Press Publ., 2018. 240 p.
- Voronoi G.F. Nouvelles applications des paramètres continus à la théorie de formes quadratiques. Journal für die reine und angewandte Mathematik, 2009, vol. 1908, no. 134, pp. 198–287. doi: 10.1515/crll.1908.134.198.
- Jo Sung-Koo, Kim Seon-Hyo, Song Bo. Thermodynamics on the Formation of Spinel (MgO×Al2O3). Inclusion in Liquid Iron Containing Chromium. Metallurgical and Materials Transactions B, 2002, vol. 33, pp. 703–709. doi: 10.1007/s11663-002-0023-4.
- Osio A.S., Liu S., Olson D.L. The effect of solidification on the formation and growth of inclusions in low carbon steel welds. Material Science and Engineering A, 1996, vol. 221, no. 1-2, pp. 122–133. doi: 10.1016/S0921-5093(96)10466-4.
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