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Metallurgist
Published in: Metallurgist 5-6/2016

20-10-2016

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

Authors: A. I. Zaitsev, O. N. Baklanova, A. V. Koldaev, A. V. Grishin, I. G. Rodionova, S. V. Yashchuk, I. V. Lyasotskii

Published in: Metallurgist | Issue 5-6/2016

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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.
previous article Effect of Alloying with Molybdenum and Chromium on Pipe Steel of Strength Category X65 Properties
next article Effect of Thermal Action on Low-Carbon and Silicon-Manganese Steel Microstructure and Properties

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Literature
1.
A. I. Zaitsev, I. G. Rodionova, A. A. Pavlov, et al., “Development of effective forms of corrosion-resistant clad rolled product based on a new generation of high-strength low-carbon microalloyed steels,” Metallurg, No. 10, 71–76 (2014).
2.
S. Yu. Nastich, Development of Rolled Strip and Sheet Thermomechanical Treatment Technology for Low-Alloy Steel Based on Controlling Ferrite-Bainite Structure Formation: Auth. Abstr. Diss. Doct. Techn. Sci., Moscow (2013).
3.
H. Mohrbacher, “Principal effects of Mo in HSLA steels cross effects with microalloying elements,” Int. Seminar on Applications Mo in Steels, Beijing, China, June 27–28, 2010, pp. 76–97.
4.
T. Gladman et al., “Structure-property relationships in high strength microalloyed steel,” Proc. Symp. Microalloying’75, Union Carbide Corp., New York (1976), pp. 32–55.
5.
W. B. Morrison, J. Iron Steel Inst., 201, 317 (1963).
6.
Y. Funakawa et al., “Development of high strength hot-rolled steel sheet consisting of ferrite and nanometer-sized precipitates,” ISIJ Int., 44, No. 11, 1945–1951 (2004).CrossRef
7.
Metadata
Title
Microstructure and Property Formation for High-Strength Low-Carbon Steels Microalloyed with Titanium and Molybdenum
Authors
A. I. Zaitsev
O. N. Baklanova
A. V. Koldaev
A. V. Grishin
I. G. Rodionova
S. V. Yashchuk
I. V. Lyasotskii
Publication date
20-10-2016
Publisher
Springer US
Published in
Metallurgist / Issue 5-6/2016
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-016-0320-9

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