Future work is determined on the basis of analyzing experience in the development of world automobile manufacture for optimizing alloying and production parameters for manufacturing high-strength low-alloy steels. On the basis of analyzing thermodynamic conditions for excess phase separation, a comprehensive study of the structure and the properties of hot-rolled high-strength low-alloy steel product, alloying systems and key production parameters are determined that make it possible to prepare in a 2000 mill of Severstal rolled product 2–3 and 6 mm thick with a yield strength of not less than 460–500 N/mm2. Comparative evaluation of the potential of different alloying systems has demonstrated the advantages of microalloying with niobium and titanium for the best grain refinement and provision of a high and stable set of properties for rolled product of the strength level in question.
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T. M. Efimova and I. N. Chirkina from Bardin TsNIIchermet and S. V. Zhilenko from CherMK Severstal took part in this work.
Translated from Metallurg, No. 8, pp. 50–56, August, 2009.
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Rybkin, N.A., Rodionova, I.G., Shaposhnikov, N.G. et al. Development of approaches for selecting the optimum alloying systems and production parameters for manufacturing hot-rolled high-strength low-alloy steels for automobile building. Metallurgist 53, 486 (2009). https://doi.org/10.1007/s11015-009-9186-4
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DOI: https://doi.org/10.1007/s11015-009-9186-4