Age Hardening and Accompanying Transformations of the Al-Ag and Al-Cu-Mg Supersaturated Solid Solutions

F. Lourdjane; Z. Chaieb; Azzeddine Abderrahmane Raho; M. Kadi-Hanifi

doi:10.4028/www.scientific.net/DDF.369.116

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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 369Age Hardening and Accompanying Transformations of...

Age Hardening and Accompanying Transformations of the Al-Ag and Al-Cu-Mg Supersaturated Solid Solutions

Abstract:

The development of the transition metastable phases and the accompanying hardening of these transformations are studied for Al-20wt%Ag and Al-3wt%Cu-1wt%Mg supersaturated solid solutions. During the precipitation the GP and GPB zones form by a process of negative diffusion. The metastable phases are characterized by their hardness isotherms and their temperature range determined on the hardness isochronal.