STRUCTURAL FEATURES OF STRUCTURAL STEELS MICROALLOYED WITH NITROGEN AND VANADIUM / Panfilova L. M.,Smirnov L. A. // METALLURGIST. - 2015. - V. 58, l. 9-10. - P. 916-920.

ISSN/EISSN:

0026-0894 / 1573-8892

Type:

Article

Abstract:

Results are presented for a study of medium-carbon structural steels for the effect of microalloying with nitrogen, vanadium, and other nitride-forming elements on the microstructure and processes of nitride formation after hardening with tempering and rolling. The level of mechanical properties is compared after different treatment. It is shown that a lower bainite structure forms with high dislocation density after rolling and cooling steel to 550 degrees C. Within ferrite plates there is precipitation of finely dispersed densely located vanadium carbonitride. Strengthening as a result of good dispersion of the fine lower bainite structure, high dislocation density, and dispersion strengthening with precipitation of nanosize carbonitride phase provides a high level of mechanical properties after rolling and cooling to 550 degrees C, comparable with the level of properties after hardening and tempering.

Author keywords:

nanosize carbonitride; vanadium; niobium; strengthening; dislocation density; lower bainite

DOI:

10.1007/s11015-015-0017-5

Web of Science ID:

ISI:000349005300032

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JAN
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
EISSN	1573-8892
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	uim@ural.ru
ResearcherID-Numbers	Smirnov, Leonid/T-8402-2017
Funding-Acknowledgement	UrO RAN targrted fundamental research projects {[}13-3-029 UZTM]
Funding-Text	This work was carried out with financial support under UrO RAN targrted fundamental research projects (Grant No. 13-3-029 UZTM).
Number-of-Cited-References	9
Usage-Count-Since-2013	6
Journal-ISO	Metallurgist
Doc-Delivery-Number	CA6FN