Microstructure, texture and mechanical properties of cyclic expansion-extrusion deformed pure copper

Abstract : A recently developed severe plastic deformation technique, cyclic expansion-extrusion (CEE), was applied on a commercial pure copper to investigate the relationship between microstructure, texture and mechanical properties over a wide range of strains. Microstructure and crystallographic texture investigations were performed by optical microscopy, electron back scattering and X-ray diffraction. Significant evolution in grain refinement was achieved down to sub-micron grain size. A considerable texture evolution was also observed within the deformation zone with the extrusion as the decisive step for the final texture. Fiber deformation textures were observed; the < 111 > component was found to be the main texture component while the < 100 > component became significant only at very large strains. The evolution in hardness and tensile properties was studied and a clear relationship between texture evolution, microstructural parameters and mechanical properties was found and discussed.
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Materials Science and Engineering: A, Elsevier, 2015, 628, pp.423-432. 〈10.1016/j.msea.2015.01.003〉
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https://hal.univ-lorraine.fr/hal-01514734
Contributeur : Lem3 Ul <>
Soumis le : mercredi 26 avril 2017 - 16:03:01
Dernière modification le : jeudi 11 janvier 2018 - 06:23:43

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N. Pardis, Cai Chen, R. Ebrahimi, Laszlo S. Toth, C. F. Gu, et al.. Microstructure, texture and mechanical properties of cyclic expansion-extrusion deformed pure copper. Materials Science and Engineering: A, Elsevier, 2015, 628, pp.423-432. 〈10.1016/j.msea.2015.01.003〉. 〈hal-01514734〉

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