Application of the Embedded-atom Method to Liquid Binary Cu-Ni Alloys
Application of the Embedded-atom Method to Liquid Binary Cu-Ni Alloys作者机构:State Key Lab. of RSA Institute of Metal Research Chinese Academy of Sciences Shenyang 110015 China School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 China
出 版 物:《Journal of Materials Science & Technology》 (材料科学技术(英文版))
年 卷 期:1997年第13卷第2期
页 面:117-122页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学]
主 题:Rev Li Application of the Embedded-atom Method to Liquid Binary Cu-Ni Alloys Cu Ni
摘 要:A simple analytic embedded-atom model of monoatoms that includes more than nearest neighbours has been extended to study properties of binary liquid Cu-Ni alloys, here the two-body potential between different species of atoms is taken as a function of the two-body potential for the pure metals with a unique form which yields alloy models with the same invariance to electron density transformations as monoatomic models. Faber-Ziman structure factors have been computed by molecular dynamics simulation on the base of this model. The results are in good agreement with experimental data given by Waseda, thus supporting the overall validity of the approach, especially for cross potential of Cu-Ni pair. Further, a detailed description of structure of binary liquid Cu-Ni alloys with different compositions have been performed using pair analysis and bond orientational order method etc., and then the chemical short range order has also been examined to reveal the structural characterization.