Abstract
An Al-0.3%Cu alloy was deformed to high strains by cold rolling. The as-deformed samples were annealed at different temperatures until complete recrystallization. The cold rolling textures were determined by X-ray diffraction while the recrystallization textures and microstructures were characterized by electron backscatter diffraction. It was found that the rolling texture was characterized by a strong Brass component. After complete recrystallization Goss and Cube textures were developed. The effects of deformation strain and annealing temperature on the recrystallization textures are discussed.
Highlights
The recrystallization texture of aluminium alloys has been studied for many decades due to its importance for the mechanical properties and formability of Al alloys
As a typical face centred cubic (FCC) alloy with a high stack fault energy, Al alloys reveal a well-known rolling texture called the β-fibre, which runs from Brass {110} through S {123} to Copper {112} texture components during plastic deformation
The present results revealed that the deformation texture of the Al-0.3%Cu alloy exhibits a strong Brass orientation (Figure 3)
Summary
The recrystallization texture of aluminium alloys has been studied for many decades due to its importance for the mechanical properties and formability of Al alloys. It is known that the development of a recrystallization texture is strongly dependent on the deformation texture. As a typical face centred cubic (FCC) alloy with a high stack fault energy, Al alloys reveal a well-known rolling texture called the β-fibre, which runs from Brass {110} through S {123} to Copper {112} texture components during plastic deformation [1] The Brass component is usually weaker than the S and Copper components. Recrystallization textures develop usually having components of Cube {001}, retained rolling texture and/or random orientation [2]. In our recent experiment a strong Goss {011} texture was found in the centre layer of the Al-0.3%Cu sheets after being cold rolled to 98% and annealing at 300°C [4].
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