Features of structure and property formation are studied for cold-rolled product in two-phase ferriticmartensitic steels by modeling heat treatment in a continuous annealing unit (CAU) of six laboratory melts of different chemical composition intended for preparing steels of different strength classes according to EN10338:2013. Steel of some melts, apart from alloying with elements currently used extensively, are additionally alloyed with aluminum. Hot- and cold-rolling processing regimes simulate those used under production conditions. Results of modeling heat treatment in a CAU by different regimes show an increase in strength and a reduction in ductility properties with a reduction in overageing temperature. Rolled product of steel alloyed with aluminum has lower strength properties, ratio of yield to ultimate strengths, but better relative elongation values.
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Translated from Metallurg, No. 6, pp. 48–54, June, 2016.
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Nishchik, A.V., Yashchuk, S.V., Baklanova, O.N. et al. Effect of Treatment Temperature Regimes in a Continuous Annealing Unit on Two-Phase Ferritic-Martensitic Steel Mechanical Properties. Metallurgist 60, 594–601 (2016). https://doi.org/10.1007/s11015-016-0337-0
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DOI: https://doi.org/10.1007/s11015-016-0337-0