2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 2: Dubois Intl. Symp. / Complex Metallic Systems
| Editors: | Kongoli F, Kobe S, Calin M, Dong C |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 130 pages |
| ISBN: | 978-1-987820-38-6 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Principal cluster definition and composition interpretation of binary bulk metallic glasses
Dandan Dong1; Yanping Ma2; Chuang Dong1;1DALIAN UNIVERSITY OF TECHNOLOGY, Dalian, China; 2HAINAN UNIVERSITY, Haikou, China;
Type of Paper: Regular
Id Paper: 197
Topic: 36
Abstract:
In terms of the cluster-plus-glue-atom model, a good glass former conforms to a general composition formula [cluster](glue atoms)1 or 3, where the cluster is derived from a devitrification phase. However, an alloy phase usually contains multiple clusters and the selection rule of the so-called principal cluster should be specified. In this paper, two important properties of the principal clusters are emphasized, i.e., spherical periodicity and large cluster separation distance, both being structural features of metallic glasses. According to these two criteria, the principal clusters are rigorously identified in devitrification phases and are used to construct cluster formulas to explain Cu-(Zr,Hf), Ni-(Nb,Ta), Al-Ca, and Pd-Si bulk binary metallic glasses, as well as their relevant eutectic points.