Figure 1

Microstructures of the (A) initial cast material and the (B) alloy at an applied strain of γ ~ 65, 380 and 1800. The magnification is the same for all three images. (C) Synchrotron XRD profiles recorded for different applied strains, γ ~ 0, γ ~ 190 and γ ~ 380 reveal a peak shift for the Cu phase and vanishing Ag peaks. The initial positions of the (111) peaks of Cu and Ag and the (200) peak of Ag are indicated. Please note that the intensities of the profiles were adjusted by a multiplication factor for better visibility. (D) Lattice parameter changes of Ag and Cu as a function of applied strain. The error was determined by the pixel size of the used detector.