The Study of the Behavior of Constrained Groove Pressed Magnesium Alloy after Heat Treatment

• Authors: M. Zimina , J. Bohlen , D. Letzig , G. Kurz , M. Poková , M. Knapek , J. Zrník , M. Cieslar
• Languages of publication: EN

Abstracts

EN

In this work twin-roll cast AZ31 magnesium strip of thickness 5.6 mm was subjected to the heat treatment and further constrained groove pressing. A comparison of the microstructure and microhardness of as-cast, constrained groove pressed and annealed material was carried out. The twin-roll cast strip exhibits an inhomogeneous structure which is replaced by a finer and uniform recrystallized one after aging at 450°C for 10 h. A significant increase of the microhardness was observed accompanied by a pronounce grain refinement. Nevertheless, the distribution of the grain size is unequal along the specimen width. Thermal stability of the deformed structure during subsequent annealing was investigated. It was shown that higher annealing temperatures result in a formation of a more uniform recrystallized structure and in a significant drop of microhardness down to the values obtained for as-cast alloy.

Keywords

EN

62.20.F-; 62.20.Qp; 81.05.Bx; 81.05.Zx

Discipline

• 62.20.Qp: Friction, tribology, and hardness(see also 46.55.+d Tribology and mechanical contacts in continuum mechanics of solids; for materials treatment effects on friction related properties, see 81.40.Pq)
• 62.20.F-: Deformation and plasticity(see also 83.50.-v Deformation and flow in rheology; for materials treatment effects on deformation, see 81.40.Lm)
• 81.05.Bx: Metals, semimetals, and alloys
• 81.05.Zx: New materials: theory, design, and fabrication

• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 4
• Pages: 775-778

Dates

published

2015-10

Contributors

author

M. Zimina

• Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 5, 12116, Prague, Czech Republic

author

J. Bohlen

• Magnesium Innovation Centre (MagIC) Helmholz Zentrum Geesthacht, Max-Planck Str. 1, D21502 Geesthacht, Germany

author

D. Letzig

• Magnesium Innovation Centre (MagIC) Helmholz Zentrum Geesthacht, Max-Planck Str. 1, D21502 Geesthacht, Germany

author

G. Kurz

• Magnesium Innovation Centre (MagIC) Helmholz Zentrum Geesthacht, Max-Planck Str. 1, D21502 Geesthacht, Germany

author

M. Poková

• Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 5, 12116, Prague, Czech Republic

author

M. Knapek

• Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 5, 12116, Prague, Czech Republic

author

J. Zrník

• COMTES FHT a.s., Průmyslová 995, Dobřany 334 41, Czech Republic

author

M. Cieslar

• Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 5, 12116, Prague, Czech Republic

References

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Identifiers

DOI

10.12693/APhysPolA.128.775