Texture Evolution in an Al-Cu-Mg Alloy During Hot Rolling

Journal Article · Sun Jul 15 04:00:00 EDT 2018 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/S11665-018-3427-2· OSTI ID:22860402

Xia, Peng; Liu, Zhiyi; Wu, Wenting; Zhao, Qi; Lu, Luqing; Bai, Song ^[1]

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1. Ministry of Education, Central South University, Key Laboratory of Nonferrous Metal Materials Science and Engineering (China)

The texture evolution in the intermediate (the 1/4 thickness) layer of hot-rolled Al-Cu-Mg alloy sheets was investigated by the x-ray diffraction technique, electron backscattered diffraction analysis and transmission electron microscopy observation. The results showed that a texture transition from the shear texture {001}<110> to the β-fiber textures occurred as the rolling temperature increased to 420 °C. The shear strain caused by friction resulted in this strong shear texture formation at the low rolling temperature. As the rolling temperature increased, the plane strain substituting the shear strain dominated in the intermediate layer, giving rise to a significant increase in the β-fiber textures. Increasing the rolling temperature was found to preferentially activate the non-octahedral {112}<110> slip system, thereby benefiting the development of strong Brass. At the low rolling reduction of 74%, the textures with low intensity tended to converge on the α-fiber, containing Goss, Brass, P and L components. As the rolling reduction increased to 90%, the textures were strengthened and gradually flew toward the β-fiber, containing Brass, Copper and S components. The S and Copper bands were found to be the preferential sites for the development of recrystallizing Cube grains during hot rolling.

• OSTI ID: 22860402
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 7 Vol. 27; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
BACKSCATTERING
COPPER COMPOUNDS
ELECTRON DIFFRACTION
FRICTION
LAYERS
MAGNESIUM COMPOUNDS
REDUCTION
ROLLING
STRAINS
TEXTURE
THICKNESS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION