Abstract
Structural properties of Cu-Ni alloy are studied using MD simulation with EAM potential function. The FZ partial structure factor exhibits that Cu content has a small effect on it and the same holds true for bonded pairs and bond orientation order parameters, which indicates that the structure of Cu-Ni alloy isn't sensitive to its component. FZ partial structure factor of liquid Cu-Ni alloy is compared with that from Waseda, and they agree well with each other, which shows that EAM potential function can correctly describe the structural properties of Cu-Ni alloy, and also that the results of our MD simulation are reliable. In rapid cooling process, the second peaks of their pair distribution function from other Cu-Ni alloy split in two, indicative of amorphous structure; while the pair distribution function of Cu-Nim alloy exhibits the characteristic of crystalline. The bonded pairs, bond orientation order and effective diffusion coefficient of Cu-Ni alloy show that Cu-Ni alloy form shep crystalline at rapid cooling process.
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