FORMABILITY OF STEELS FOR ROLLING OF WIRE ROD

1 HADASIK Eugeniusz
Co-authors:
1 PŁACHTA Adam 1 KUC Dariusz 1 TKOCZ Marek 1 NIEWIELSKI Grzegorz 1 MRUGAŁA Agata
Institution:
1 Silesian University of Technology, Katowice, Poland, EU, eugeniusz.hadasik@polsl.p
Conference:
24th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, June 3rd - 5th 2015
Proceedings:
Proceedings 24th International Conference on Metallurgy and Materials
Pages:
338-344
ISBN:
978-80-87294-58-1
ISSN:
2694-9296
Published:
12th January 2015
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
411 views / 157 downloads
Abstract

The paper presents results of steel 23MnB4 and C70 plasticity tests meant for rolling wire rods on modern continuous rolling mill. Plasticity assessment was conducted in hot torsion test performed on swing plastometer in temperature range of rolling wire rode from 850 to 1150°C and deformation speed of 0.1; 1 and 10 s-1. The basis for plasticity assessment was the dependency between flow stress and deformation achieved on the basis of registered torsion moment in function of the number of sample torsions. On such basis the characteristic values were determined: peak flow stress, deformation value which corresponds with peak stress and deformation to failure. Those values are dependent on deformation parameters and certain dependencies between peak flow stress and corresponding deformation with activation energy of the deformation process and Zener-Hollomon parameter were elaborated.

Keywords: hot torsion, flow stress, plasticity of steel, wire rod

© 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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