Effect of Mg content on shear texture evolution at variable processing conditions in Al-Mg alloys

초록

The current study is based on employing the torsional test parameters to observe the texture evolution of Al-Mg alloy with the face-centered cubic structure. We considered the Mg content in the alloy, which is an alloying composition, as our prime test parameter and examined how its variations are related to the test variables, such as temperature and strain rate. To confirm the torsion texture evolution of Al-Mg alloy, it was tested using the electron backscattered diffraction method and represented using a pole figure and an orientation distribution function. In the Al-Mg alloy, the change of Mg content causes a transformation of the physical properties, such as the stacking fault energy. Therefore, the difference in the shear texture evolution is observed to be remarkable. Further, the test results were compared to examine the validity of the rate sensitive crystal model. As the Mg content and strain rate increase, a specific face-centered cubic texture has been pronounced. Furthermore, as the temperature rises, the intensity of A fiber weakens, and the overall orientation distribution becomes random. From the results, this shear texture is discovered to be well suited for the rate sensitive crystal model, which demonstrates that the orientation persistence increases with increasing Mg content, higher strain rate, and lower temperatures. (C) 2020 Elsevier B.V. All rights reserved.

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