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THE INFLUENCE OF THERMOMECHANICAL PROCESSING PARAMETERS ON THE MESOSTRUCTURE FORMATION AND MECHANICAL PROPERTIES

1 KODZHASPIROV Georgii
Co-authors:
1 RUDSKOY Andrey
Institution:
1 Saint-Petersburg State Polytechnical University, St. Petersburg, Russian Federation, gkodzhaspirovr@gmail.com
Conference:
23rd International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 21 - 23, 2014
Proceedings:
Proceedings 23rd International Conference on Metallurgy and Materials
Pages:
200-206
ISBN:
978-80-87294-52-9
ISSN:
2694-9296
Published:
18th June 2014
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
335 views / 124 downloads
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Abstract

The influence of Temperature-Strain-Time parameters at the Thermomechanical Processing (TMP) of austenitic, duplex and pearlitic structural steels on the mesostructure formation has been studied based on the laboratory, industrial experiments and TEM analysis. The fragmented dislocation substructure observed in steels with a different carbon, nitrogen, titanium, niobium content as well as recrystallization gave evidence that TMP effects the work-hardening and softening behaviour. The problem of mesostructure appearing in various steels and alloys due to various modes of TMP used hot and hot-warm deformation is discussed. The role of plastic strain in the formation of mesostructure and the relation between the changes in the crystal structure due to TMP and the mechanical properties of the steels are considered.

Keywords: Thermomechanical Processing, fragmentation, mesostructure, recrystallization

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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