Superplastic Behaviour of an Extruded AZ91 Alloy

• Authors: Z. Trojanová , K. Turba , Z. Száraz , T. Ryspaev , P. Palček , M. Chalupová
• Languages of publication: EN

Abstracts

EN

Plastic deformation of extruded AZ91 magnesium alloy was investigated at various strain rates and in a temperature range of 360-420°C. Samples exhibiting superplastic behaviour were prepared with different thermo-mechanical treatments. Microstructure of samples was observed by light and scanning electron microscopy. The strain rate sensitivity parameter m has been estimated by the abrupt strain rate change method. Possible physical mechanisms of the superplastic flow are discussed.

Keywords

EN

81.05.Bx; 62.20.fq

Discipline

• 81.05.Bx: Metals, semimetals, and alloys
• 62.20.fq: Plasticity and superplasticity

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 3
• Pages: 597-600

Dates

published

2012-09

Contributors

author

Z. Trojanová

• Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Ke Karlovu 5, CZ-121 16 Praha 2, Czech Republic

author

K. Turba

• Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Ke Karlovu 5, CZ-121 16 Praha 2, Czech Republic

author

Z. Száraz

• Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Ke Karlovu 5, CZ-121 16 Praha 2, Czech Republic

author

T. Ryspaev

• Institute of Welding Engineering and Cutting Manufacturing Processes (ISAF), Clausthal University of Technology, Agricola Str. 2, D-38678 Clausthal-Zellerfeld, Germany

author

P. Palček

• Department of Materials Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, SK-010 26 Žilina, Slovak Republic

author

M. Chalupová

• Department of Materials Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, SK-010 26 Žilina, Slovak Republic

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Identifiers

DOI

10.12693/APhysPolA.122.597