Chemical Short-Range-Ordering Effect on Structural Relaxation in Metallic Glasses View Full Text


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Article Info

DATE

2008-02-16

AUTHORS

Aiwu Zhu, G.J. Shiflet, S.J. Poon

ABSTRACT

A model is proposed to address chemical effects on structural relaxation in metallic glasses. The atomic short range ordering (SRO) is described under the quasi-chemical approximation (QCA). Local chemical deviations from the ideal SRO are considered as an excess enthalpy. The simplified analysis of a disordered region’s evolution is based on the notion of the collective bond exchange between neighboring atoms. The approach suggests a bimolecular mechanism with possibly large apparent activation energy for structural relaxation near the glass transitions. More... »

PAGES

1958-1962

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11661-007-9456-3

DOI

http://dx.doi.org/10.1007/s11661-007-9456-3

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1011510405


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