Formation of structures and mechanical properties of low-carbon steel after longitudinal and helical rolling | Izvestiya vuzov. Fizika. 2021. № 10. DOI: 10.17223/00213411/64/10/104

Formation of structures and mechanical properties of low-carbon steel after longitudinal and helical rolling

The influence of longitudinal and helical rolling on the microstructures formation, mechanical characteristics and cold resistance of Х65 low-carbon steel has been investigated. It was shown that the formation of an elongated dispersed structure of steel after longitudinal rolling with a high proportion of low-angle grain boundaries and a crystallographic texture {001} <110> leads to a significant increase in microhardness, strength properties of steel (σ_UTS = 1050 MPa), but a decrease in plasticity, fracture toughness (KCV^-70^°С = 25 J/cm²) and cold resistance of steel. Tempering of steel after longitudinal rolling contributes to a decrease in microhardness and strength properties (σ_UTS = 900 MPa), but an improvement in steel ductility (up to ε = 15%) and fracture toughness (KCV^-70^°С = 195 J/cm²). The use of helical rolling allows maintaining a high level of fracture toughness at negative test temperatures (KCV^-70^°С = 260 J/cm2) due to the formation of an equiaxed dispersed structure (d = 3.3 μm) with a small fraction and size of pearlite grains, more uniform distribution of structural components and axial texture <110>.

Download file

Counter downloads: 28

Keywords

low carbon steel, longitudinal rolling, helical rolling, microstructure, texture, strength, fracture toughness, fracture micro mechanisms

Authors

Name	Organization	E-mail
Gordienko A.I.	Institute of Strength Physics and Materials Science of SB RAS	mirantil@sibmail.com
Pochivalov Yu.I.	Institute of Strength Physics and Materials Science of SB RAS	pochiv@ispms.tsc.ru
Vlasov I.V.	Institute of Strength Physics and Materials Science of SB RAS	good0@yandex.ru
Mishin I.P.	Institute of Strength Physics and Materials Science of SB RAS	mishinv1@yandex.ru

Всего: 4

References

Urtsev V.N., Shmakov A.V., Mokshin E.D., et al. // Phys. Met. Metallogr. - 2019. - V. 120. - No. 12. - С. 1233-1241.

Эфрон Л.И. Металловедение в «большой» металлургии. Трубные стали. - М.: Металлургиздат, 2012. - 696 с.

Мотовилина Г.Д., Орлов В.В., Хлусова Е.И. // Вопросы материаловедения. - 2005. - Т. 43. - № 3. - С. 5-12.

Деревягина Л.С., Гордиенко А.И., Каширо П.О. // Изв. вузов. Физика. - 2018. - Т. 61. - № 11. - С. 22-28.

Настич С.Ю., Матросов М.Ю. // Металлург. - 2015. - № 9. - С. 5-12.

Galkin S.P. // Steel in Translation. - 2014. - V. 44. - No. 1. - P. 61-64.

Naizabekov A., Volokitina I., Lezhnev S., et al. // J. Mater. Eng. Perform. - 2020. - V. 29. - No. 1. - P. 315-329.

Naizabekov A.B., Lezhnev S.N., Dyja H., et al. // Metalurgija. - 2017. - V. 56. - No. 1-2. - P. 199-202.

Гетманова М.Е., Ливанова О.В., Ливанова Н.О. и др. // Проблемы черной металлургии и материаловедения. - 2017. - № 4. - С. 13-24.

Égiz I.V., Shamrai V.F. // Met. Sci. Heat Treat. - 2003. - V. 45(1). - P. 35-38.

Derevyagina L.S., Gordienko A.I., Pochivalov Y.I., Smirnova A.S. // Phys. Met. Metallogr. - 2018. - V. 119. - No. 1. - P. 83-91.

Jia T., Zhou Y., Jia X., Wang Z. // Metall. Mater. Trans. A. - 2017. - V. 48 - P. 685-696.

Арабей А.Б., Пышминцев И.Ю., Штремель М.А. и др. // Изв. вузов. Черная металлургия. - 2009. - № 3. - С. 3-8.

Farber V.M., Khotinov V.A., Belikov S.V., et al. // Phys. Met. Metallogr. - 2016. - V. 117. - No. 4. - P. 407-421.

Feng L.-L., Hu F., Qiao W.-W., Lu X.-Y. // Kang T'ieh/Iron and Steel. - 2020. - V. 55. - No. 10. - P. 89-95.

Farber V.M., Khotinov V.A., Morozova A.N., Martin T. // Met. Sci. Heat Treat. - 2015. - V. 57. - P. 487-491.

Kang N., Lee Y., Byun S., et al. // Mater. Sci. Eng. A. - 2009. - V. 499. - P. 157-161.

Lee S.-W., Lee S.-I., Hwang B.E. // J. Korean Institute of Metals and Materials. - 2020. - V. 58. - No. 5. - P. 293-303.