Structure and mechanical properties of hot-deformed low-carbon martensitic steel


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Abstract

The structural changes in low-carbon martensitic 15Kh2G2NMFBA steel induced by its hot forging in the temperature range 1150–850°C have been studied. The calculated cracking resistance parameter Ic is in agreement with its experimental value. A relation is found between the lath sizes in the martensite structure and the change in the impact toughness characteristics. A combined regime of hot deformation and hot treatment of the low-carbon martensitic steel is proposed to form submicrometer-sized structural elements and high strength and impact toughness characteristics.

About the authors

I. D. Romanov

OOO Radius-Servis

Author for correspondence.
Email: i-romanov@ro.ru
Russian Federation, ul. Okulova 75a, Perm, 614990

A. A. Shatsov

Perm National Research Polytechnic University

Email: i-romanov@ro.ru
Russian Federation, Komsomol’skii pr. 29, Perm, 614990

M. G. Zakirova

Perm National Research Polytechnic University

Email: i-romanov@ro.ru
Russian Federation, Komsomol’skii pr. 29, Perm, 614990

S. K. Berezin

Perm National Research Polytechnic University

Email: i-romanov@ro.ru
Russian Federation, Komsomol’skii pr. 29, Perm, 614990

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