MICROSTRUCTURAL EVOLUTION AND MECHANICAL PROPERTIES OF ULTRA-LOW CARBON STEEL AFTER SEVERE PLASTIC DEFORMATION PROCESS

1 JABŁOŃSKA Magdalena
Co-authors:
1 KOWALCZYK Karolina 2 RUSZ Stanislav 1 BEDNARCZYK Iwona
Institutions:
1 VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, stanislav.rusz@vsb.cz
2 Silesian University of Technology, Katowice, Poland, EU, magdalena.jablonska@polsl.pl
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
229-234
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
48 views / 18 downloads
Abstract

This article presents the impact of continuous plastic deformation SPD with the DRECE technique on a structure and properties of low carbon IF steel. The impact of numbers of passes on a change of mechanical properties of tested steel, such as tensile strength TS and yield strength YS, was tested. Within the SPD techniques an unconventional method of deformation was used, which is DRECE - Dual Rolls Equal Channel Extrusion developed on VŠB – Technical University in Ostrava. This technique uses reproducible plastic deformation to refine the structure and improve the mechanical properties of a metal band [1]. Numerous changes in the structure and they were associated to evolution of a dislocation structure and grain refinement were observed. In the case of the tested steel the increase of resistance properties was confirmed after the DRECE process after first pass through the device. The biggest hardening of the material is observed after the fourth pass.

Keywords: SPD process, interstisial free steel, microstructure, mechanical properties
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