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MM: Fachverband Metall- und Materialphysik
MM 43: Mechanical properties II
MM 43.4: Talk
Friday, March 30, 2007, 11:45–12:00, H6
Cu-Ag-alloys: materials with combined optimum properties — •Julia Lyubimova1, Jens Freudenberger2, Alexandre Gaganov3, and Ludwig Schultz4 — 1IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany — 2IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany — 3IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany — 4IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
In the present work two alloys, namely Cu - 7wt.% Ag and Cu - 24wt.% Ag, were investigated. The combination of optimum mechanical and electrical properties of these alloys was achieved. The conductor shows a ultimate tensile strength of 1,2 GPa, a strain to failure of 1,6 % and an electrical conductivity of 60 % IACS. The mechanical properties can be improved e.g. by the deformation at low temperatures or by the addition of a third element. The effect of the deformation temperature and also the Zr - addition on the properties of these alloys will be discussed. In addition, the fatigue behaviour of cold worked Cu - Ag - alloys will be shown.