INFLUENCE OF THE SHEAR STRAIN ON THE MICROSTRUCTURE EVOLUTION IN THE ASYMMETRIC ROLLING PROCESS

1 KOCZURKIEWICZ Bartosz
Co-authors:
1 STEFANIK Andrzej
Institution:
1 Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Institute of Metal Forming and Safety Engineering, Armii Krajowej 19, Avenue, 42-201 Czestochowa, Poland EU, bartosz.koczurkiewicz@wip.pcz.pl
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:
396-400
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:
29 views / 10 downloads
Abstract

It is commonly known that shear strain occurring in asymmetric rolling process plays a very effective role to improve mechanical properties of metallic materials especially in the production of sheet metal. In the article preliminary research results of deformation in asymmetric rolling process influence on equivalent deformation distribution and austenite microstructure changes are presented. The C45 steel plate rolling process with reduction ε = 30 % in temperature 1000 °C were modeled. For experiments Forge 3D computer program based on FEM were used. The analyze of influence of different rolls speed ratio in range av= 1,0 ÷ 1,5 were done. Based on austenite microstructure evolution model the austenite grain size as a result of asymmetric rolling processes with different coefficient of rolls speed ratio was determined. It was found that strain distribution was inhomogeneous. The zones of increased strain were observed, which affected the uneven distribution of austenite grain size. Increasing different coefficient of roll speed ratio should caused a reduction in the uniform distribution of strains, and thus led to a more even distribution of the austenite grain size.

Keywords: Asymmetric rolling process, shear strain, austenite evolution
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