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Journal articles
Achieving highly strengthened Al–Cu–Mg alloy by grain refinement and grain boundary segregation
Abstract : An age-hardenable Al-Cu-Mg alloy (A2024) was processed by high-pressure torsion (HPT) for producing an ultrafine-grained structure. The alloy was further aged for extra strengthening. The tensile strength then reached a value as high as ~1 GPa. The microstructures were analyzed by transmission electron microscopy and atom probe tomography. The mechanism for the high strength was clarified in terms of solid-solution hardening, cluster hardening, work hardening, dispersion hardening and grain boundary hardening. It is shown that the segregation of solute atoms at grain boundaries including subgrain boundaries plays a significant role for the enhancement of the tensile strength.
Cited literature [62 references]
https://hal-normandie-univ.archives-ouvertes.fr/hal-02899710
Contributor : Xavier Sauvage <>
Submitted on : Wednesday, July 15, 2020 - 2:40:09 PM
Last modification on : Thursday, July 16, 2020 - 10:31:26 AM
Contributor : Xavier Sauvage <>
Submitted on : Wednesday, July 15, 2020 - 2:40:09 PM
Last modification on : Thursday, July 16, 2020 - 10:31:26 AM
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A2024-HPT Masuda MSEA final.pd...
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