On the basis of research results it is shown that provision of good strength indices, ductility, forgeability, and operating reliability that are difficult to combine may be provided simultaneously in hot-worked steels by obtaining a uniform finely dispersed ferritic structure and a volumetric system of nano-sized mainly interphase carbide precipitates. These steels have an extremely economical alloying system and simple manufacturing technology providing the possibility of obtaining hot-rolled sheet with thickness up to 1.8 mm and hot-dip zinc coating application. Initially in ferritic steels microalloying with Ti and Mo is used, although the possibility of using a complexly alloyed system of V, Nb, Ti, and Mo is demonstrated.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. I. Zaitsev, I. G. Rodionova, S. V. Yashchuk, et al., “Development of scientific and technological bases of automobile steel production,” Chern. Met.: Byul. NTiÉI, No. 3(1359), 89–109 (2013).
N. Fonstein, Advanced High Strength Sheet Steels: Physical Metallurgy, Design, Processing and Properties, Springer International Publishing, Switzerland (2015).
K. Hasegawa, K. Kawamura, T. Urabe, and Y. Hosoya, “Effects of microstructure on stretch-flange-formability of 980 MPa grade cold-rolled ultra high strength steel sheets,” ISIJ Int., 44, No. 3, 603–609 (2004).
A. I. Zaitsev, I. G. Rodionova, A. A. Pavlov, et al., “Effect of composition, structural state, and manufacturing technology on service properties of high-strength low-carbon steel main bimetal layer,” Metallurgist, 59, No. 7, 684–492 (2015).
Y. Funakawa, T. Fujita, and K. Yavada, “Metallurgical features of NANOHITEN and application to warm stamping,” JFE Technical Report, No. 18, 74–79 (2013).
F. A. Khalid and D. V. Edmonds, “Interphase precipitation in microalloyed engineering steels and model alloy,” Mater. Sci. Technol., 9, 384–396 (1993).
K. Seto, Y. Funakawa, and S. Kaneko, “Hot rolling high strength steels for suspension and chassis parts “NANOHITEN” and “BTH steels,” JFE Technical Report, No. 10, 19–25 (2007).
Y. Funakawa, T. Shiozaki, K. Tomita, et al., “Development of high strength hot-rolled sheet steel consisting of ferrite and nanometer-sized carbides,” ISIJ Int., 44, 1945–1951 (2004).
N. G. Shaposhnikov, A. V. Koldaev, A. I. Zaitsev, et al., “Features of titanium carbide precipitation in low carbon high strength steels microalloyed with titanium and molybdenum,” Metallurgist, 69, Nos. 7–8, 810–816 (2016).
C. Y. Chen, H. W. Yen, F. H. Kao, et al., “Precipitation hardening of high-strength low-alloy steels by nanometer-sized carbides,” Mater. Sci. Eng. A, 499, 162–166 (2009).
R. Lagneborg and S. Zajac, “A model for interphase precipitation in V-microalloyed structural steels,” Metall. Mater. Trans. A, 32, No. 1, 39–60 (2001).
C. Y. Chen, C. C. Chen, and J. R. Yang, “Microstructure characterization of nanometer carbides heterogeneous precipitation in Ti–Nb and Ti–Nb–Mo steel,” Mater. Charact., 88, 69–79 (2014).
F. Z. Bu, X. M. Wang, S. W. Yang, et al., “Contribution of interphase precipitation on yield strength in thermomechanically simulated Ti–Nb and Ti–Nb–Mo microalloyed steels,” Mater. Sci. Eng. A, 620, 22–29 (2014).
Z. Wang, H. Zhang, C. Guo, et al., “Effect of molybdenum addition on the precipitation of carbides in the austenite matrix of titanium micro-alloyed steels,” J. Mat. Sci., 51, 4996–5007 (2016).
K. Zhang, L. Zhaodong, W. Zhenqiang, et al., “Precipitation behavior and mechanical properties of hot-rolled high strength Ti–Mobearing ferritic sheet steel: The great potential of nanometer-sized (Ti, Mo)C carbide,” J. Mater. Res., 31, No. 9, 1254–1263 (2016).
X. Deng, T. Fu, Z. Wang, et al., “Extending the boundaries of mechanical properties of Ti–Nb low-carbon steel via combination of ultrafast cooling and deformation during austenite-to ferrite transformation,” Met. Mater. Int., 23, No. 1, 175–183 (2017).
N. Kamikawa, K. Sato, G. Miyamoto, et al., “Stress–strain behavior of ferrite and bainite with nano-precipitation in low carbon steels,” Acta Mater., 83, 383–386 (2015).
A. Rijkenberg, A. Blowey, P. Bellina, and C. Wooffindin, “Advanced high stretch-flange formability steels for chassis & suspension applications,” Proc. 4th Int. Conf. on Steels in Cars and Trucks SCT2014 (Braunschweig, Germany, 15–19 June 2014).
M. I. Gol’dshtein, S. V. Grachev, and Yu. G. Veksler, Special Steels [in Russian], MISiS, Moscow (1999).
F. B. Pickering, Physical Metallurgy and Steel Development [Russian translation], Metallurgiya, Moscow (1982).
R. Wang, C. I. Garcia, M. Hua, et al., “Microstructure and precipitation behavior of Nb, Ti complex microalloyed steel produced by compact strip processing,” ISIJ Int., 46, No. 9, 1345–1353 (2006).
T. Gladman, “Precipitation hardening in metals,” Mater. Sci. and Technol., 15, 30–36 (1999).
N. Kamikawa, Y. Abe, G. Miyamoto, et al., “Tensile behavior of Ti, Mo-added low carbon steels with interphase precipitation,” ISIJ Int., 54, No. 1, 212–221 (2014).
A. V. Koldaev, D. L. D’yakonov, A. I. Zaitsev, and N. A. Arutyunyan, “Kinetics of the formation of nanosize niobium carbonitride precipitates in low-alloy structural steels,” Metallurgist, 60, No. 9–10, 1032–1037 (2017).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Metallurg, Vol. 62, No. 6, pp. 45–52, June, 2018.
Rights and permissions
About this article
Cite this article
Zaitsev, A.I., Koldaev, A.V., Arutyunyan, N.A. et al. Principles of Creating New Economically Alloyed Ferritic Steels with a Unique Set of Properties. Metallurgist 62, 532–540 (2018). https://doi.org/10.1007/s11015-018-0690-2
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11015-018-0690-2