Journals →  Chernye Metally →  2022 →  #12 →  Back

Rolling and Metal Science
ArticleName Development of technology for the production of new materials on traditional wide-strip hot rolling mills using modern methods of numerical and physical modeling. Part 1
DOI 10.17580/chm.2022.12.09
ArticleAuthor I. S. Vasilyev, P. Yu. Zhikharev, A. V. Perestoronin, V. V. Mukhin

Bauman Moscow State Technical University, Moscow, Russia:
I. S. Vasilyev, Leading Engineer, Research Institute of Structural Materials and Technological Processes (NII KM & TP)
P. Yu. Zhikharev, Leading Engineer, NII KM & TP, e-mail:
A. V. Perestoronin, Cand. Eng., 2nd category engineer of the Scientific and Educational Center "Center for Additive Technologies"


PJSC Magnitogorsk Iron and Steel Works, Magnitogorsk, Russia:
V. V. Mukhin, Cand. Eng., Leading Engineer of the Rolling Production Group of the Scientific and Technical Center


A description of the technique for developing the technology for hot-rolled coils manufacturing in the conditions of an existing production, the technology and characteristics of which go beyond the passport characteristics of the equipment, is presented. It is proposed to carry out comprehensive laboratory studies of the developed material (the kinetics of recrystallization processes during heating and rolling, the kinetics of structural transformations, material properties at production temperatures), engineering calculations of the equipment operation and simulation of the strip behavior during the rolling and coiling before the industrial testing of the hot rolled products manufacturing technology. The practical application of the proposed approach is demonstrated by the example of the development of a technology for manufacturing hot-rolled coils from low-carbon boron steel with a minimum yield strength of 1000 MPa. For the developed steel, rational temperature parameters for slabs heating are determined, which exclude the development of collective recrystallization and the formation of an uneven-grained structure, and also limiting deformation modes are defined, which ensure efficient grain refinement and implemented on existing hot strip mills. It has been established that in low-carbon steel a high strength with satisfactory ductility, low-temperature toughness, and the ability to cold forming (bending, profiling, etc.) is achieved due to the formation of a lower bainite structure in rolled products. The required structural state was obtained by applying the technology of interrupted quenching from rolling heating at massaverage cooling rates of about 25 °C/s.
The studies were carried out within the program of the Russian Federation of strategic academic leadership "Priority-2030" aimed at supporting the development programs of educational institutions of higher education, the scientific project PRIOR/SN/NU/22/SP5/26 "Development of innovative digital tools for the implementation of applied artificial intelligence and advanced statistical analysis of Big Data in production processes of metallurgical products".

keywords Microstructure, laboratory hot rolled specimens, controlled rolling, interrupted quenching, recrystallization, microalloying, high strength steel, lower bainite

1. Ringinen D. А., Chastukhin А. V., Khadeev G. Е., Efron L. I. Application of methods of simulation and reproduction of processes in laboratory conditions for the development of technological schemes for thermomechanical rolling. Problemy chernoy metallurgii i materialovedeniya. 2014. No. 5. pp. 28–37.
2. Muntin А. V., Chastukhin А. V., Chervonny А. V. et al. Development of the technology for production of rolled products for K60 strength class pipes in a casting and rolling complex. Problemy chernoy metallurgii i materialovedeniya. 2016. No. 3. pp. 17–25.
3. Ilyinskiy V. I., Golovin S. V., Stepanov P. P., Ringinen D. А. et al. Development of production technologies at the 5000 mill for rolled products for pipeline projects with extreme parameters. Metallurg. 2017. No. 8. pp. 57–68.
4. Chastukhin А. B., Ringinen D. А., Khadeev G. Е., Efron L. I. Application of simulation of metallurgical processes for the development of end-to-end technology for the production of welded pipes. Proceedings of the XXIII International Scientific and Practical Conference Chelyabinsk, September 17–19, 2018. 2018. pp. 67–82.
5. Shatalov R., Genkin A. Sheet mill control in steel strip hot rolling. Journal of Chemical Technology and Metallurgy. 2015. Vol. 50, Iss. 6. pp. 624–628.
6. Shatalov R. L., Genkin A. L. Operating a sheet-rolling complex to minimize energy costs. Metallurgist. 2008. Vol. 52. Iss. 9-10. pp. 485–490.
7. Shatalov R. L., Medvedev V. А. Control of properties and structure of steel vessels by cooling in various media at the outlet of rolling and pressing lines. Chernye Metally. 2021. No. 2. pp. 34–38.
8. Moravec J., Mičian M., Málek M., Švec M. Determination of CCT diagram by dilatometry analysis of high-strength low-alloy S960MC steel. Materials. 2022. Vol. 15, Iss. 13. p. 4637. DOI: 10.3390/ma15134637.
9. Zurutuza I., Isasti N., Detemple E., Schwinn V., Mohrbacher H., Uranga P. Toughness property control by Nb and Mo additions in high-strength quenched and tempered boron steels. Metals. 2021. Vol. 11, Iss. 1. p. 95. DOI: 10.3390/met11010095.
10. Tselikov A. I., Tomlenov A. D., Zyuzin V. I., Tretyakov A. V., Nikitin G. S. Theory of rolling: directory. Moscow: Metallurgiya, 1982. 335 p.
11. GOST 1497–84. Metals. Methods of tension test. Introduced: 01.01.1986.
12. GOST 9454–78. Metals. Method for testing the impact strength at low, room and high temperature. Introduced: 01.01.1979.
13. GOST 9450–76. Measurement microhardness by diamond instruments indentation. Introduced: 01.01.1977.
14. GOST 9651–84. Metals. Methods of tension tests at elevated temperatures. Introduced: 01.01.1986.
15. Poliak E. I., Jonas J. J. A one-parameter approach to determining the critical conditions for the initiation of dynamic recrystallization. Acta Materialia. 1996. Vol. 44, Iss. 1. pp. 127–136.
16. Chastukhin А. B., Ringinen D. А., Efron L. I. Creation of models for the formation of the austenite structure and their use for improving the technology of controlled rolling of pipe steels. Proceedings of the XI Congress of Rollermen. Magnitogorsk, October 9–11, 2017. Moscow, 2018. Vol. 2. pp. 350–353.
17. Sun W. P., Hawbolt E. B. Comparison between static and metadynamic recrystallization-an application to the hot rolling of steels. ISIJ International. 1997. Vol. 37. No. 10. pp. 1000–1009.
18. Nakata N., Militzer M. Modeling of Microstructure Evolution during Hot Rolling of a 780 MPa High Strength Steel. ISIJ International. 2005. Vol. 45. No. 1. pp. 82–90.
19. Kwon O., DeArdo A. J. On the recovery and recrystallization which attend static softening of hot-deformed copper and aluminum. Acta Metallurgica. 1990. Vol. 38. No. 1. pp. 41–54.
20. GOST R ISO 643–2015. Steels. Metallographic determination of the apparent grain size. Introduced: 01.08.2016.
21. Zajac S., Schwinn V., Tacke K. H. Characterisation and quantification of complex bainitic microstructures in high and ultra-high strength linepipe steels. Materials Science Forum. 2005. Vol. 500-501. pp. 387–394.
22. Caballero F., Garcia-Mateo C., Cornide J., Allain S., Puerta J., Crouvizier M., Mastrorillo T., Jantzen L., Vuorinen E., Lindgren L. et al. New advanced ultra-high strength bainitic steels: ductility and formability. In Research Found for Coal and Steel, Technical Steel Research, Publications Office of the EU: Luxembourg – Luxembourg – 2013. p. 123.

Language of full-text russian
Full content Buy