Microstructure and Property Formation for High-Strength Low-Carbon Steels Microalloyed with Titanium and Molybdenum


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Abstract

Features of microstructure formation for hot-rolled product of low-carbon steels microalloyed with titanium and molybdenum are studied. The possibility is demonstrated of achieving a high level of mechanical properties due to forming a volumetric system of nanosize complex (Ti, Mo)C carbide precipitates during cooling after hot rolling, including during cooling of a wound coil with γ → α transformation, and also as a result of forming a finely dispersed ferrite structure with increased dislocation density. Conformity of the temperature for the end of rolling and strip winding on a coil with a cooling regime in this temperature range, and also an increase in free titanium content in this steel, are desirable.

About the authors

A. I. Zaitsev

Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet); Chemical Faculty, Lomonosov Moscow State University

Author for correspondence.
Email: aizaitsev1@yandex.ru
Russian Federation, Moscow; Moscow

O. N. Baklanova

Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet)

Email: aizaitsev1@yandex.ru
Russian Federation, Moscow

A. V. Koldaev

Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet)

Email: aizaitsev1@yandex.ru
Russian Federation, Moscow

A. V. Grishin

Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet)

Email: aizaitsev1@yandex.ru
Russian Federation, Moscow

I. G. Rodionova

Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet)

Email: aizaitsev1@yandex.ru
Russian Federation, Moscow

S. V. Yashchuk

High Technology Metallurgy Scientific Research Center

Email: aizaitsev1@yandex.ru
Russian Federation, Moscow

I. V. Lyasotskii

Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet)

Email: aizaitsev1@yandex.ru
Russian Federation, Moscow

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