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Metallurgist
Published in: Metallurgist 7-8/2020

11-11-2020

Study of the Effect of Microalloying on Microstructure and Mechanical Property Formation for Rolled Product of Strength Class K52 Produced Under CRU Conditions

Authors: V. V. Naumenko, O. A. Bagmet, M. Yu. Matrosov, A. V. Muntin, E. A. Soldatov, A. A. Kichkina

Published in: Metallurgist | Issue 7-8/2020

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Abstract

Results are provided for a study of the effect of different microalloying systems (Nb, Nb–V, V–N) on structure formation and mechanical properties of rolled product of strength class K52 produced by combined technology of melting, casting of thin slabs 90 mm thick, and direct rolling with subsequent accelerated cooling and winding on a coil. It is shown that all of the micro-alloying versions selected provide the required strength properties, while metal microalloyed solely with niobium demonstrates the best brittle fracture resistance at low temperature. It is shown that addition of niobium to steel not only refines grain size in the metal matrix, but also changes ferrite morphology increasing the proportion of acicular ferrite, which improves steel cold resistance.
previous article Study of Features of Phase Precipitation Formation, Structural State, and Properties of Ferritic Class Microalloyed Low-Carbon Steels
next article Investigation of Self-Oscillations and the Development of a Procedure of Stabilization of the Process in a Continuous Mill for Strip Cold Rolling

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Metadata
Title
Study of the Effect of Microalloying on Microstructure and Mechanical Property Formation for Rolled Product of Strength Class K52 Produced Under CRU Conditions
Authors
V. V. Naumenko
O. A. Bagmet
M. Yu. Matrosov
A. V. Muntin
E. A. Soldatov
A. A. Kichkina
Publication date
11-11-2020
Publisher
Springer US
Published in
Metallurgist / Issue 7-8/2020
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-020-01052-2

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