NEW MODEL PREDICTING FLOW CURVES IN WIDE RANGE OF THERMOMECHANICAL CONDITIONS OF 38MNVS6 STEEL

1 OPĚLA Petr
Co-authors:
1 SCHINDLER Ivo 1 KAWULOK Petr 2 VANČURA Filip 1 KAWULOK Rostislav 1 RUSZ Stanislav
Institutions:
1 VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, petr.opela@vsb.cz, ivo.schindler@vsb.cz, petr.kawulok@vsb.cz, rostislav.kawulok@vsb.cz, stanislav.rusz2@vsb.cz
2 Kovárna VIVA a.s., Zlín, Czech Republic, EU, filip.vancura@viva.cz
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
458-463
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
113 views / 39 downloads
Abstract

Prediction capability of a newly derived hot flow stress model is demonstrated on experimental flow curves of steel 38MnVS6. These flow curves were also described by the commonly used equations like Cingara & McQueen, JMAK or Hensel-Spittel. Graphical and statistical comparison proved that flow curve prediction by the newly derived model leads to the best fit with the experimental data. An advantage of the new model was discovered especially in case of the flow curves acquired in very broad range of thermomechanical conditions when shapes of these curves may very differ.

Keywords: hot compression flow curves, flow curve characteristic points, hot flow stress model

© 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.

Scroll to Top