Structural Origin of the Enhanced Glass-Forming Ability Induced by Microalloying Y in the ZrCuAl AlloyReportar como inadecuado




Structural Origin of the Enhanced Glass-Forming Ability Induced by Microalloying Y in the ZrCuAl Alloy - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

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





*

Author to whom correspondence should be addressed.



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





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

Fuente: http://mdpi.com/



DESCARGAR PDF




Documentos relacionados