Paper Titles
Effects of Non-Flux Purification on the Microstructure and Mechanical Properties of AZ31+xCa Mg Alloy
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A Constitutive Model for Casting Magnesium Alloy Based on the Analysis of a Spherical Void Model
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Microstructures and Mechanical Properties of Mg-Li-Zn Alloys as Processed by ECAE
p.225
Microstructural Characterization and Mechanical Behavior of an Mg-9%Li-1%Zn Alloy
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Effect of Grain Size on Necklace Formation of Magnesium Alloys
p.233
Elevated Temperature Mechanical Behavior of Mg-Y-Zn Alloys
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Microstructures, Tensile Properties and Forming Process of AZ31 Alloy Sheets
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Effect of Temperature on Microstructure and Texture during Compression of AZ31
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Effect of Second Phase on the Mechanical Properties of Mg-Al-Zn Alloy by Equal Channel Angular Extrusion
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Effect of Grain Size on Necklace Formation of Magnesium Alloys

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Abstract:

In this study, AZ31 in form of sheet, plate and extruded rod and AZ61 wire with different initial grain sizes were used to investigate the effect of initial grain size on recrystallization behavior and the formation of fine recrystallized grain (the so-called necklace) structure. Nucleation and growth of recrystallized grains along grain boundaries has been examined. In order to observe the effect of initial grain size and deformation on static recrsytallization and necklace formation, the specimens were annealed at 100-250°C for 10min--2hr. Specimens are also stretched to a total strain of 10, 20 and 40% at 300°C at an initial cross head speed of 1x10-3 s-1 for dynamic recrystallization studies. The results suggest that there exists a grain size limit, below which a necklace structure is not observed.

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Periodical:

Materials Science Forum (Volumes 546-549)

Pages:

233-236

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.546-549.233

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Online since:

May 2007

Authors:

Ali Arslan Kaya, Ozgur Duygulu, Onuralp Yucel, Dan Eliezer

Keywords:

AZ31 Alloy, AZ61, Grain Size, Magnesium Alloy, Necklace, Recrystallization

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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