Effect of Process Temperature on the Texture Evolution and Mechanical Properties of Rolled and Extruded AZ31 Flat Products

The application of magnesium flat products is affected by the limited formability at room temperature and the anisotropy of the mechanical properties. The main reason for this is the underlying hexagonal crystal structure of magnesium and the development of strong crystallographic textures during ma...

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Bibliographic Details
Published in:Crystals (Basel) 2022-09, Vol.12 (9), p.1307
Main Authors: Nienaber, Maria, Kurz, Gerrit, Letzig, Dietmar, Kainer, Karl Ulrich, Bohlen, Jan
Format: Article
Language:English
Subjects:
Alloys
Anisotropy
Crystal structure
Crystallography
Deformation
Evolution
Experiments
Extrusion
flat products
Formability
Grain size
Heat
magnesium
Magnesium alloys
Magnesium base alloys
Magnesium industry
Material properties
Mechanical properties
Microstructure
Production processes
rolling
Room temperature
Texture
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Summary:The application of magnesium flat products is affected by the limited formability at room temperature and the anisotropy of the mechanical properties. The main reason for this is the underlying hexagonal crystal structure of magnesium and the development of strong crystallographic textures during massive forming processes with distinct alignment of basal planes. For an improvement in the properties of semi-finished products, the detailed knowledge of the influence of the manufacturing process on the microstructure and texture evolution of the flat products as a result of dynamic and static recrystallization is required. In this work, flat products made of conventional magnesium alloy AZ31 were manufactured by the rolling process as well as by direct extrusion, with variation in the process temperature. This allowed the development of a distinct variation in microstructures and textures of the flat products. The effects on mechanical properties and formability are highlighted and discussed in relation to the microstructure and texture. It is shown that both the process and the temperature have a major influence on texture and consequently on the material properties.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst12091307