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The Prediction of Glass-Forming Compositions in Metallic Systems - The Development of New Bulk Metallic Glasses

机译:金属体系中玻璃形成成分的预测-新型大块金属玻璃的发展

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摘要

A novel methodology of predicting specific compositions for glass forming alloys based on elemental cluster selection, liquidus lines, atomic packing efficiency and ab initio calculations is presented and discussed. The proposed composition selection model has lead to the discovery of a number of novel, soon to be reported Mg, Cu, Zn and Ag-based bulk metallic glasses. The proposed model may also be used to explain high glass forming ability and physical properties of known BMG compositions and to pin-point new or superior BMG compositions in existing glass forming systems. Further, the aforementioned model shows strong correlations between proposed elemental clusters, glass forming ability and BMG ductility. This model has also shown applicable adaptation to known ceramic oxide glass forming systems.
机译:提出并讨论了一种基于元素簇选择,液相线,原子堆积效率和从头算的预测玻璃成形合金特定成分的新颖方法。提议的成分选择模型导致发现了许多新颖的,不久将被报道的基于Mg,Cu,Zn和Ag的块状金属玻璃。提出的模型还可用于解释已知BMG合成物的高玻璃成型能力和物理性能,并指出现有玻璃成型系统中新的或优良的BMG合成物。此外,上述模型显示了拟议的元素簇,玻璃形成能力和BMG延展性之间的强相关性。该模型还显示出可适用于已知的陶瓷氧化物玻璃成形系统。

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