Effect of austenite-decomposition temperature on bainite morphology and properties of low-carbon steel after thermomechanical treatment / Schastlivtsev V. M.,Tabatchikova T. I.,Yakovleva I. L.,Klyueva S. Yu.,Kruglova A. A.,Khlusova E. I.,Orlov V. V. // PHYSICS OF METALS AND METALLOGRAPHY. - 2013. - V. 114, l. 5. - P. 419-429.

ISSN/EISSN:

0031-918X / нет данных

Type:

Article

Abstract:

Peculiarities of the bainite structure formed in low-carbon steel 07G2NDMBT during isothermal austenite decomposition, namely, the sizes of crystallites, their mutual orientation, and the presence of cementite precipitates, are considered. The temperature range of the formation of bainite with the subgrain structure was determined. The size of the austenite grain and degree of hot deformation were found to affect the transformation of bainite that occurs upon subsequent cooling and the submicrocrystalline bainite structure. We studied the structure and mechanical properties of a rolled sheet 16 mm thick, which was subjected to thermomechanical treatment (TMT) under plant conditions in accordance with optimum regimes. It was shown that the high structure dispersion of the steel subjected to TMT is due to not only the formation of bainite with the subgrain structure, but also the partial transfer of crystal-structure defects from hot-rolled austenite to the final bainite structure.

Author keywords:

low-carbon steel; isothermal transformation; structure; bainite; thermomechanical treatment; mechanical properties CONSTRUCTION STEELS; DEFORMATION; MARTENSITE

DOI:

10.1134/S0031918X13050086

Web of Science ID:

ISI:000319475300009

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAY
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	CONSTRUCTION STEELS; DEFORMATION; MARTENSITE
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	tabat@imp.uran.ru
ResearcherID-Numbers	Табатчикова, Татьяна/J-4297-2013 Yakovleva, Irina/J-6793-2013 Delgado Reyna, Svetlana/J-3517-2013 Schastlivtsev, Vadim/I-5825-2013
ORCID-Numbers	Табатчикова, Татьяна/0000-0002-4208-0868 Yakovleva, Irina/0000-0001-8918-3066 Delgado Reyna, Svetlana/0000-0003-0798-6506 Schastlivtsev, Vadim/0000-0002-2312-1169 , Elena/0000-0001-5111-3273
Funding-Acknowledgement	Russian Academy of Sciences {[}01201064335]; Russian Foundation for Basic Research {[}12-2-020-ChTZ]; Presidium of the Russian Academy of Sciences {[}12-P-2-1030]
Funding-Text	Electron-microscopic studies were performed at the Electron Microscopy Center for Collective Use, Ural Branch, Russian Academy of Sciences, and at the Division for Electron Microscopy at the Test Center of Nanotechnology and Advanced Materials at the Institute of Metal Physics, the Ural Branch of the Russian Academy of Sciences. This work was performed in accordance with the plan of the Russian Academy of Sciences (state registration of theme no. 01201064335) and was supported in part by the Russian Foundation for Basic Research (project OFI no. 12-2-020-ChTZ) and by the Presidium of the Russian Academy of Sciences (program no. 12-P-2-1030).
Number-of-Cited-References	17
Usage-Count-Since-2013	13
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	151QM