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352 results on '"Bocher, Philippe"'

9. Detecting Defects in Materials Using Deep Convolutional Neural Networks

Author

Boyadjian, Quentin, Vanderesse, Nicolas, Toews, Matthew, Bocher, Philippe, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Campilho, Aurélio, editor, Karray, Fakhri, editor, and Wang, Zhou, editor

Published
2020
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40. Effect of Unidirectional and Cross-Rolling on the Texture Evolution of a Hot Extruded AA6082.

Author

Yazdani, Majid, Pot, Clément, Boyadjian, Quentin, Yang Liu, Yue, Stephen, Béland, Jean-François, and Bocher, Philippe

Subjects
POLYCRYSTALS, ELECTRIC conductivity, MICROSTRUCTURE, ALUMINUM alloys, MECHANICAL behavior of materials
Abstract

To illustrate how the texture evolution of a polycrystalline aluminum alloy is dependent on the deformation path, hot extruded AA6082 plates in T6 conditions were rolled with various deformation modes. Unidirectional and cross-rolling were conducted at room temperature for different levels of thickness reduction. The resulting textures were then evaluated using the electron backscatter diffraction technique. Depending on the extent of deformation, different textures were obtained. The strong texture of the initial hot extruded material influences texture development and provides new insights into texture development in aluminum alloys. The evolution of the Cube component was particularly interesting in this matter. A competition between dislocation glide and crystal rotation could explain the observed results. The comprehension of these mechanisms leads to a better understanding of texture evolution that drives many properties in aluminum alloys. [ABSTRACT FROM AUTHOR]

Published
2023
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41. Texture and Mechanical Properties of Extruded AA6063 Aluminum Alloy.

Author

Pot, Clément, Yazdani, Majid, Boyadjian, Quentin, Bocher, Philippe, and Béland, Jean-François

Subjects
MECHANICAL behavior of materials, ALUMINUM alloys, MICROSTRUCTURE, ELECTRIC conductivity, CRYSTALLOGRAPHY
Abstract

The extrusion process imposes a large amount of deformation on the material, resulting in complex changes in microstructure morphology and crystallographic texture, making the predictions of the final mechanical properties very challenging. In this research, the texture and the mechanical properties of AA6063 aluminum extruded profiles are investigated. This alloy adopts a recrystallized microstructure with equiaxed grains and a typical texture. The plastic anisotropy is compared with a calculation method considering only the texture effect. Some attempts were made to numerically reproduce specific experimental results by accounting for certain restauration mechanisms. [ABSTRACT FROM AUTHOR]

Published
2023
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