Structural Origin of the Enhanced Glass-Forming Ability Induced by Microalloying Y in the ZrCuAl AlloyReport as inadecuate




Structural Origin of the Enhanced Glass-Forming Ability Induced by Microalloying Y in the ZrCuAl Alloy - Download this document for free, or read online. Document in PDF available to download.

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China





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Academic Editor: Ana Sofia Ramos

Abstract In this work, the structural origin of the enhanced glass-forming ability induced by microalloying Y in a ZrCuAl multicomponent system is studied by performing synchrotron radiation experiments combined with simulations. It is revealed that the addition of Y leads to the optimization of local structures, including: 1 more Zr-centered and Y-centered icosahedral-like clusters occur in the microstructure; 2 the atomic packing efficiency inside clusters and the regularity of clusters are both enhanced. These structural optimizations help to stabilize the amorphous structure in the ZrCuAlY system, and lead to a high glass-forming ability GFA. The present work provides an understanding of GFAs in multicomponent alloys and will shed light on the development of more metallic glasses with high GFAs. View Full-Text

Keywords: metallic glasses; microalloying; glass-forming ability; synchrotron radiation; microstructure; reverse Monte-Carlo simulation metallic glasses; microalloying; glass-forming ability; synchrotron radiation; microstructure; reverse Monte-Carlo simulation





Author: Gu-Qing Guo, Shi-Yang Wu and Liang Yang *

Source: http://mdpi.com/



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