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Metallurgist
Erschienen in: Metallurgist 5-6/2019

23.10.2019

Study of the Effect of Composition and Thermal Deformation Treatment on Properties of Ferritic Steels Microalloyed with Titanium and Niobium. Part 2. Phase Precipitate Characteristics*

verfasst von: A. V. Koldaev, A. I. Zaitsev, I. A. Krasnyanskaya, D. L. D’yakonov

Erschienen in: Metallurgist | Ausgabe 5-6/2019

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Abstract

The effect of composition and thermal deformation treatment parameters (temperature for the end of rolling and strip winding on a coil, cooling rate after rolling) on mechanical properties, microstructure, and characteristics of precipitates (type, amount, size, morphology, distribution) in advanced ferritic automotive sheet steels is studied. It is demonstrated for the first time that these steels make it possible to obtain simultaneously high strength, ductility and formability due to a homogeneous fine ferritic microstructure additionally strengthened by volumetric system of nano-sized carbide precipitates. It is shown that the contribution to steel strengthening due to the formation of phase precipitates can reach significant values of more than 300 MPa. The main features of phase precipitate, microstructure, and property formation of ferritic steels are established.
Vorheriger Artikel Correlation of 12% Chromium Ferritic-Martensitic Steel Heat Resistance with Supercooled Austenite Stability Indices
Nächster Artikel Increase in Efficiency of Heat Treatment of Large-Sized Mill Rolls by Simulating Thermal Conditions of Hardening

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Metadaten
Titel
Study of the Effect of Composition and Thermal Deformation Treatment on Properties of Ferritic Steels Microalloyed with Titanium and Niobium. Part 2. Phase Precipitate Characteristics*
verfasst von
A. V. Koldaev
A. I. Zaitsev
I. A. Krasnyanskaya
D. L. D’yakonov
Publikationsdatum
23.10.2019
Verlag
Springer US
Erschienen in
Metallurgist / Ausgabe 5-6/2019
Print ISSN: 0026-0894
Elektronische ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-019-00866-z

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