DETERMINATION OF THE CRITICAL VALUE OF NORMALIZED COCKROFT – LATHAM CRITERION FOR THE AZ31 MAGNESIUM ALLOY BASED ON TENSILE TEST

1 STEFANIK Andrzej
Co-authors:
2 MRÓZ Sebastian 3 SZOTA Piotr
Institutions:
1 Czestochowa University of Technology, Czestochowa, Poland, EU, stefanik@wip.pcz.pl
2 Czestochowa University of Technology, Czestochowa, Poland, EU, mroz@wip.pcz.pl
3 Czestochowa University of Technology, Czestochowa, Poland, EU, pszota@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:
470-475
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:
17 views / 5 downloads
Abstract

Limit values of the normalized Cockroft – Latham criterion for different range of temperature and strain rates may be determined by using the comparative method for the uniaxial tensile test of notched specimens. Uniaxial tension of notched specimens was performed on a multi-function metallurgical process simulator, Gleeble 3800. In order to determine the actual values of the normalized Cockroft - Latham criterion, theoretical studies of the notched specimen tension test were also conducted. The hot tensile deformation and the fracture behaviors of the AZ31 magnesium alloy were studied with the temperature range of 350 – 450°C and strain rates 0.1, 1.0 and 10.0 s-1.

Keywords: magnesium alloy, fracture, normalized Cockroft – Latham criterion, FE modeling
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