MICROSTRUCTURE AND MECHANICAL PROPERTIES OF EXTRUDED MG-2Y-1ZN MAGNESIUM ALLOY

1 DVORSKÝ Drahomír
Co-authors:
1 KUBÁSEK Jiří 1 VOJTĚCH Dalibor 1 VAVŘÍK Jaroslav
Institution:
1 Faculty of chemical technology, Department of metals and corrosion engineering, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6 – Dejvice, Czech Republic, e-mail: dvorskyd@vscht.cz
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
1519-1523
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
15 views / 3 downloads
Abstract

Magnesium alloys are utilized in the aviation and automotive industry for their low density and good mechanical properties. Magnesium alloys are also interesting for use in the field of biodegradable implants because magnesium is biocompatible element essential for human body. There exist high demands on the mechanical and corrosion properties for both applications. Those properties can be strongly affected by alloying and production method. Alloying elements can improve mechanical properties by strengthening by intermetallic phases. Further improvement can be achieved by grain refinement, which can be obtained by alloying with Zr or by hot deformation associated with the recrystallization process. Present paper is focused on characterization of Mg-2Y-1Zn alloy, which has excellent mechanical and corrosion properties. The Mg-2Y-1Zn alloy is prepared by hot extrusion. Microstructure and mechanical properties are evaluated and compared with material prepared by conventional casting. High values of ultimate and yield strengths were measured, however at the cost of low ductility.

Keywords: Magnesium, extrusion, mechanical properties, grain size
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