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INFLUENCE OF MICROSTRUCTURE ON TENSILE PROPERTIES OF MAGNESIUM ALLOY AZ91

1 ŠTĚPÁNEK Roman
Co-authors:
1 PANTĚLEJEV Libor 2 MAN Ondřej
Institutions:
1 Institute of Materials Science and Engineering, NETME centre, Brno University of Technology
2 Institute of Materials Science and Engineering, Brno University of Technology, Czech Republic
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:
1252-1257
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:
252 views / 94 downloads
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Abstract

This paper deals with influence of microstructure of magnesium alloy AZ91 on its mechanical properties. Tensile characteristics and microstructures of cast and extruded state of the alloy, and both of these initial states after equal channel angular pressing (ECAP), were compared. It was found that tensile properties are not only determined by the grain size but another aspect plays also an important role because the highest values of σ0.2 proof stress and tensile strength were achieved for the alloy in extruded state despite its higher average grain size compared to both ECAPed states of the alloy. Compared to this, microhardness seems to be related only to grain size.

Keywords: AZ91, microstructure, ECAP, tensile properties

© 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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