Scientific blog
PhD report (August 2013) J.Poplewska 
Monday, 9 September, 2013, 10:32
Posted by Jagoda Poplewska
In August I did:
- microhardness measurement for selected samples of AA3004,
- preparing samples for annealing of Al-Zr,
- continued analysis of global textures measured by X-ray diffractometer,
- preparing a presentation for a meeting summarizing the academic year 2012/2013,
- finished writing and sent the article for the 41th School of Materials Science and Engineering which will be held in 24-27.09.2013 in Krynica (Poland). Below its abstract:

MICROSTRUCTURE AND TEXTURE EVOLUTION DURING ANNEALING
OF AA1050 ALUMINIUM ALLOY PRE-DEFORMED IN ECAP

J. Poplewska, H. Paul, A. Tarasek, K. Berent

Abstract
The main aim of the experiment was to analyze the microstructure and texture evolution during recrystallization of commercial AA1050 aluminum alloy. The samples were processed by ECAP in six passes along route A and then annealed for 1 hour at temperatures ranging from 100°C to 350°C. Studies carried out using scanning electron microscopy equipped with local orientation system and X-ray diffractometer. The obtained results showed that at lower annealing temperatures, the material retains ultra-fine grain structure formed by ECAP. At higher temperatures rapid grain growth appears and transformation of flattened grains into nearly equiaxed was observed. The results showed that obtaining the fine-grained and homogeneous structure of equiaxed grains, is problematic.

Keywords : AA1050 Aluminium alloy; ECAP; Recrystallization; Grain growth; EBSD

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