Open AccessComposition analysis of AU–AG and AU–CU solid solution alloys by Friedel’s periodic spherical oscillation model
Author(s) -
Hai-Lian Hong,
Chi-Hsin Yang,
KunChieh Wang,
Hao Gao,
Hongping Yan
Publication year - 2021
Publication title -
modern physics letters b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.293
H-Index - 44
eISSN - 1793-6640
pISSN - 0217-9849
DOI - 10.1142/s0217984921410153
Subject(s) - alloy , materials science , oscillation (cell signaling) , thermodynamics , solid solution , universality (dynamical systems) , composition (language) , work (physics) , physics , condensed matter physics , chemistry , metallurgy , biochemistry , linguistics , philosophy
In this work, a two-nearest-neighbor structure model, named the 3-1 model, of the face-centered cubic (FCC) solid solution alloy is found based on the Cowley short-range order parameter and the Friedel’s periodic spherical oscillated (FPSO) model. The proposed 3-1 model has high symmetry, high density, and large separation. The model error between the 3-1 model and the standard spherical periodic model is only 0.004 nm. Besides, the chemical composition formula of the present model is applied to analyze the common grade compositions of various alloys. This work shows that the 3-1 model has universality in mature industrial grades of Au–Ag and Au–Cu alloys, and provides a simplified method to design the composition of alloys.