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Rolling and Heat treatment
ArticleName Production of structural steel heavy plates up to 100 mm by TMCP with final accelerated cooling for wind generators and bridgebuilding. Part 1
DOI 10.17580/chm.2021.05.03
ArticleAuthor E. A. Goli-Oglu
ArticleAuthorData

NLMK Dansteel A/S (Frederikswerk, Denmark):

E. A. Goli-Oglu, Cand. Eng., Process Developer, e-mail: Egoli-Oglu@yandex.ru

Abstract

Growing interest in the production of heavy plates in thickness range 60-100 mm and steel grades S420M / S420ML in compliance with EN 10025-4:2019 is noted. The first part of publication provides an overview of present-day requirements to the chemical composition and mechanical properties of S420M and S420ML heavy plates. Authors describes the specifics of designing the chemical composition and selecting the technological parameters for the thermomechanical processing with accelerated cooling (TMCP+ACC) of heavy plates in high thickness groups. Publication provides description of the main equipment of NLMK DanSteel Mill Quarto 4200 that is used for production of heavy plates from low-carbon structural steels by using TMCP+ACC process. The second part of publication provides Brief description of the specific temperature and cooling parameters of rolling and cooling stages during production of 60-100 mm heavy plates in TMCP+ACC is given, and the effect of these parameters on the formation of the final microstructural condition and mechanical properties in different thickness layers of heavy plates is investigated.

keywords Low-carbon steel, microalloying, heavy plate, hot rolling mill 4200, thermomechanical rolling, accelerated cooling, microstructure, mechanical properties
References

1. Igwemezie V., Mehmanparast A., Kolios A. Materials selection for XL wind turbine support structures: A corrosion-fatigue perspective. Marine Structures. 2018. Vol. 61. pp. 381–397.
2. Kallehave D., Byrne B., Thilsted C., Mikkelsen K. Optimization of monopiles for offshore wind turbines. Phil. Trans. R. Soc. A. 2015. Vol. 373. 15 p.
3. Shabalov I. P., Morozov Yu. D., Efron L. I. Steels for pipes and building structures with high performance properties. Moscow: Metallurgizdat, 2003. 520 p.
4. Ochagavia R., Vergara J., Castell D., Korbijn J. et al. Deep Water. The next step for offshore wind energy. A report by the European Wind Energy Association. 2013. 51 p.
5. McAuliffe F., Murphy J., Lynch K. et al. Driving Cost Reductions in Offshore Wind (The Leanwind Project final publication). Web-book of University College Cork and SINTEF Ocean. 2019. 72 p.
6. Goli-Oglu Е., Greisen Z. Destruction resistance of heat-affected zone of welded joint in heattreated steel heavy plates for offshore wind towers. Chernye Metally. 2019. No. 11. pp. 22–30.
7. Mitchell P. S. Use of vanadium in high-strength steels. Collection: Challenges of production and application of steel with vanadium. Yekaterinburg, 26-27 September 2006. pp. 53–80.
8. Odesskiy P. D., Smirnov L. А. On the use of vanadium and niobium in microalloyed steels for metal structures. Stal. 2005. No. 6. pp. 116–123.
9. Shakhpazov Е. Kh., Morozov Yu. D., Chevskaya О. N. et. al. Possibilities of using nanostructuring to increase the complex properties of tubular steels for main gas and oil pipelines. Problemy chernoy metallurgii. 2009. No. 3. pp. 51–68.
10. Sarkits I. G, Bokachev Yu. А., Goli-Oglu Е. А. Production of heavy plates in the 4200-mm heavy plate mill at NLMK DanSteel. Chernye Metally. 2014. No. 10. pp. 21–24.
11. Pogorzhelskiy V. I., Litvinenko D. А., Matrosov Yu. I., Ivanitskiy А. V. Controlled rolling. Moscow: Metallurgiya, 1979. 184 p.
12. Hong S. C., Lim S. H. Inhibition of Abnormal Grain Growth during Isothermal Holding after Heavy Deformation in Nb Steel. ISIJ International. 2002. Vol. 42, Iss. 12. pp. 1461–1467.
13. Morozov Yu. D., Pemov I. F., Nizhelskiy D. V., Goli-Orlu Е. А. Influence of the rolling cooling rate during controlled rolling on the condition of hot-deformed austenite, final structure and mechanical properties of microalloyed steel. Part 2. Metallurg. 2012. No. 2. pp. 70–77.

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