Atomic dynamics in computer simulated amorphous Ni1-xZrx alloys

被引：48

作者：

Teichler, H ^{[1
]}

机构：

[1] UNIV GOTTINGEN,INST MET PHYS,D-37073 GOTTINGEN,GERMANY

来源：

DEFECT AND DIFFUSION FORUM | 1997年 / 143卷

关键词：

metallic glasses; diffusion mechanisms; cooperative processes; molecular dynamics;

D O I：

10.4028/www.scientific.net/DDF.143-147.717

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Results are reported about composition dependencies of the atomic motions mechanisms in amorphous metallic alloys from molecular dynamics simulations for supercooled, structurally arrested Ni0.5Zr0.5 and Ni0.8Zr0.2 samples. In the Zr-poor structure we find that about 80% of Ni transitions take place in form of cooperative processes, in the mid-concentration alloy 85% of the Ni transitions are single atom jumps, in agreement with experimental observations in the literature.

引用

页码：717 / 722

页数：6

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