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HIGH TEMPERATURE THERMOMECHANICAL PROCESSING OF AUSTENITIC-FERRITIC STEEL

1 RUDSKOI Andrei
Co-authors:
1 KODZHASPIROV Georgii
Institution:
1 Peter the Great St.Petersburg Polytechnic University, St.Petersburg, Russia, gkodzhaspirov@gmail.com
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
273-278
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
575 views / 196 downloads
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Abstract

The effect of High-Temperature Thermomechanical Processing (HTMP) on the structure and mechanical properties of austenitic-ferritic steel has been studied. The dislocation structure observed in austenitic-ferritic stainless steels gave evidence that HTMP affected the strengthening and softening behaviour. Temperature - strain - time parameters are responsible for the substructure formation at the HTMP of duplex austenitic-ferritic steel. The effect of strain accumulation program in the formation of substructure and phase transformations as well and the relation between the changes in the crystal structure due to HTMP and the mechanical properties of the steels are considered.

Keywords: High-Temperature Thermomechanical Processing (HTMP), duplex austenitic-ferritic steel, dislocation structure, substructure, phase transformations

© 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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