Cluster-based composition interpretation of dual-phase glass-crystal alloys via the example of Mg49Cu42Y9
Source abstract
Abstract
Abstract Recently, the advent of dual-phase glass-crystal alloys has attracted the attention of many scholars; since Mg49Cu42Y9 in the Mg-Cu-Y system is reported to exhibit high strength, it opens up a new path for the design of new materials. However, the composition origin of this kind of alloys still puzzles everyone. In the present work, the composition of the alloy Mg49Cu42Y9, which can be considered to be related to the binary eutectic point Cu42Mg58, is thoroughly examined via the cluster-plus-glue-atom model. After strictly following the cluster-based composition analysis procedures, the basic binary eutectic composition Cu42Mg58 can be explained by the dual-cluster formula [Mg-Cu4Mg11]Cu2Mg + [Cu-Cu6Mg6]Cu = Cu14Mg19 ≈ Cu42.4Mg57.6, and thus the composition of the dual-phase alloy Mg49Cu42Y9 is explained by replacing three Mg atoms with Y ones, written as Cu14Mg16Y3 ≈ Mg48.48Cu42.42Y9.10. This cluster-based composition analysis method provides a new tool for the dual-phase alloy design.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · Quasicrystal Structures and Properties · Glass properties and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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