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Texture Formation by the Compression Deformation of AA5182 Aluminum Alloy at High Temperatures

Texture Formation by the Compression Deformation of AA5182 Aluminum Alloy at High Temperatures

Authors :
Hiroshi Fukutomi
Hyeon Mook Jeong
Kazuto Okayasu
Source :
Materials Science Forum. :918-923
Publication Year :
2012
Publisher :
Trans Tech Publications, Ltd., 2012.

Abstract

Texture formation of AA5182 for compressive deformation with a range of temperatures from 673K to 823K and strain rates from 5.0×10-4to 5.0×10-2s-1is experimentally investigated by EBSD technique and X-ray diffraction. Fiber textures are observed in all deformation conditions. Stress regions are divided into a low stress region (10~55MPa) and a high stress region (above 55MPa) on the basis of the relationship between stress and grain size. In the low stress region, it is found that the main component of the fiber texture is {001}(compression plane). In this case, the pole density at {001} is increased with increasing temperature at the same stress level. It is concluded that development of {001} component is attributed to grain boundary migration. For the high stress region, the main component of the fiber texture is {011}. It is considered that the formation of {011} component is attributed to the slip deformation by {111} system.

Details

ISSN :
16629752
Database :
OpenAIRE
Journal :
Materials Science Forum
Accession number :
edsair.doi...........15ec4d3090c6193a4c0b5286c5182874
Full Text :
https://doi.org/10.4028/www.scientific.net/msf.715-716.918