Influence of the Short-Range Order on Change of Residual Electroresistance in Binary Solid Solutions

• Main Author: P. V. Petrenko, M. P. Kulish, N. O. Mel’nikova, Yu. Ye. Grabovs’ky
• Format: Article
• Language: English
• Published: G. V. Kurdyumov Institute for Metal Physics of the N.A.S. of Ukraine 2004-09-01
• Series: Успехи физики металлов
• Online Access: https://doi.org/10.15407/ufm.05.03.401

The change of residual electrical resistance during isochronous and isothermal annealing of non-saturated solid solutions of Cu–Al, Ag–Al, Fe–Al, and Ni–Cr in a wide range of concentrations and with various initial states (deformed at 77 and 300 K, quenched from various temperatures, and annealed with a slow cooling) is studied in a given work. The investigation of short-range order is carried out for specimens of Cu–Al, Ag–Al, and Fe–Al alloys after same treatments by the method of X-ray diffuse scattering. As shown, the residual electrical resistance and absolute intensity of scattering, and hence, the Cowley’s short-range order parameters have the complicated change during an annealing. As suggested, the short-range order in these solid solutions is inhomogeneous. Not only the short-range order degree, but also its type determines the change of residual electrical resistance. The uniquely defined correlation between the residual electrical resistance and the short-range order parameter for the first co-ordination shell, α1, is absent for wide ranges of temperature and concentration.