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Title: Anomalous fast atomic dynamics in bulk metallic glasses

Journal Article · · Materials Today Physics
ORCiD logo [1];  [1]; ORCiD logo [2];  [2];  [1]; ORCiD logo [3];  [1]
  1. Zhejiang Univ., Hangzhou (China). International Center for New-Structured Materials, Laboratory of New-Structured Materials, State Key Laboratory of Silicon Materials, and School of Materials Science
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  3. Zhejiang Univ., Hangzhou (China). International Center for New-Structured Materials, Laboratory of New-Structured Materials, State Key Laboratory of Silicon Materials, and School of Materials Science; Zhejiang Univ., Hangzhou (China). State Key Laboratory of Modern Optical Instrumentation

It is believed that the strong glass formers tend to be dense packing and have rather slow atomic dynamics. Here, we report that the anomalous fast atomic dynamics exist in an Au55Cu20Ag5Si20 metallic glass (MG) with good glass forming ability (GFA) by combining X-ray photon correlation spectroscopy measurements with ab initio molecular dynamics simulations. The fast dynamics are mainly originated from the increased mobility of Cu atoms by Ag addition. Ag atoms are inclined to locate at Cu-centered <0, 2, 8, 1> motifs, which slow or accelerate the dynamics of shell Cu atoms, depending on whether Ag atoms appear at the first shells or not, leading to the formation of structural heterogeneity at the atomic level. The results enrich the understanding of atomic dynamics in Cue-Ag-containing MGs and will trigger more studies on the dynamics-GFA relationship in MGs.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Natural Science Foundation of China (NSFC); National Key Research and Development Program of China; Fundamental Research Funds for the Central Universities
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1777240
Journal Information:
Materials Today Physics, Vol. 17; ISSN 2542-5293
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (46)

Generalized Gradient Approximation Made Simple journal October 1996
Time-resolved study of the crystallization dynamics in a metallic glass journal August 2012
Gold based bulk metallic glass journal August 2005
Zr–(Cu,Ag)–Al bulk metallic glasses journal May 2008
Structural Origins of the Excellent Glass Forming Ability of Pd 40 Ni 40 P 20 journal April 2012
Amorphous phase stability and the interplay between electronic structure and topology journal June 2017
Projector augmented-wave method journal December 1994
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Neutron spin echo study of dynamic correlations near the liquid-glass transition journal February 1987
Atomic diffusion studied with coherent X-rays journal July 2009
X-Ray Photon Correlation Spectroscopy Reveals Intermittent Aging Dynamics in a Metallic Glass journal October 2015
Non-symmetrical dielectric relaxation behaviour arising from a simple empirical decay function journal January 1970
Correlation of the fragility of metallic liquids with the high temperature structure, volume, and cohesive energy journal April 2017
Decoupling of Component Diffusion in a Glass-Forming Zr 46.75 Ti 8.25 Cu 7.5 Ni 10 Be 27.5 Melt Far above the Liquidus Temperature journal October 2014
A grid-based Bader analysis algorithm without lattice bias journal January 2009
Modelling the structures of amorphous metals and alloys journal March 1977
Phase separation in Cu43Zr43Al7Ag7 bulk metallic glass journal July 2005
Time-Temperature Superposition of Structural Relaxation in a Viscous Metallic Liquid journal December 1999
Observation of an apparent first-order glass transition in ultrafragile Pt–Cu–P bulk metallic glasses journal January 2020
Heredity of medium-range order structure from melts to amorphous solids journal October 2012
Diffusion in bulk-metallic glass-forming Pd–Cu–Ni–P alloys: From the glass to the equilibrium melt journal October 2007
Slow dynamics and aging in colloidal gels studied by x-ray photon correlation spectroscopy journal July 2007
Supercooled liquids and the glass transition journal March 2001
A fast and robust algorithm for Bader decomposition of charge density journal June 2006
A thermodynamic connection to the fragility of glass-forming liquids journal April 2001
PDFgetX : a program for obtaining the atomic pair distribution function from X-ray powder diffraction data journal July 2001
La-based bulk metallic glasses with critical diameter up to 30mm journal August 2007
Impact of hybridization on metallic-glass formation and design journal January 2020
Universal nature of dynamic heterogeneity in glass-forming liquids: A comparative study of metallic and polymeric glass-forming liquids journal November 2019
Atomic-Scale Heterogeneity of a Multicomponent Bulk Metallic Glass with Excellent Glass Forming Ability journal August 2009
Coupling between chemical and dynamic heterogeneities in a multicomponent bulk metallic glass journal April 2010
Ab initiomolecular dynamics for liquid metals journal January 1993
Beyond simple exponential correlation functions and equilibrium dynamics in x-ray photon correlation spectroscopy journal May 2010
Thermodynamics and Kinetics of Bulk Metallic Glass journal August 2007
Indications for a fragile-to-strong transition in the high- and low-temperature viscosity of the Fe 43 Cr 16 Mo 16 C 15 B 10 bulk metallic glass-forming alloy journal December 2017
Relaxation dynamics and aging in structural glasses
  • Ruta, B.; Chushkin, Y.; Monaco, G.
  • 4TH INTERNATIONAL SYMPOSIUM ON SLOW DYNAMICS IN COMPLEX SYSTEMS: Keep Going Tohoku, AIP Conference Proceedings https://doi.org/10.1063/1.4794566
conference January 2013
A new structural model for transition metal–metalloid glasses journal November 1978
Nonergodicity Factor, Fragility, and Elastic Properties of Polymeric Glassy Sulfur journal December 2011
On the thermodynamics, kinetics, and sub-Tg relaxations of Mg-based bulk metallic glasses journal August 2018
Universal structural parameter to quantitatively predict metallic glass properties journal December 2016
Free-volume dependent atomic dynamics in beta relaxation pronounced La-based metallic glasses journal October 2015
Relaxation in glassforming liquids and amorphous solids journal September 2000
Hierarchical aging pathways and reversible fragile-to-strong transition upon annealing of a metallic glass former journal February 2018
Formation of Glasses from Liquids and Biopolymers journal March 1995
New Au-based bulk glassy alloys with ultralow glass transition temperature journal October 2009
Two-dimensional detector software: From real detector to idealised image or two-theta scan journal January 1996

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