Local structure of Al-and Fe-based metallic glasses

The discovery of amorphous, or glassy, metallic alloys in 1959 posed an intellectual challenge. How can one describe the structure of glasses when there is no long-range periodicity? What can the structure tell us about why certain metal alloys form glasses more easily than others? First, some universal characteristics, if any exist, of the structure metallic glasses needed to be found. A convincing model was proposed for the structure of metallic glasses based on Bernal’s dense random packing (DRP) structure. Central to this proposal is the idea that the structure of metallic glasses is that of the random filling of space by non-interacting identical spheres. In this model, strongly directional interatomic bonds do not play an important role in determining the structure of metallic glasses. This model is hpwever in conflict with one proposed by Chen, which correlates increased glass formability with increased chemical interaction between dissimilar atoms.

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Correlation between local structure and stability of supercooled liquid state in Zr-based metallic glasses

Materials Science and Engineering A ◽

10.1016/j.msea.2006.02.334 ◽

2007 ◽

Vol 449-451 ◽

pp. 90-94 ◽

Cited By ~ 12

Author(s):

Junji Saida ◽

Muneyuki Imafuku ◽

Shigeo Sato ◽

Takashi Sanada ◽

Eiichiro Matsubara ◽

...

Keyword(s):

Metallic Glasses ◽

Local Structure ◽

Liquid State ◽

Supercooled Liquid ◽

Structure And Stability ◽

Supercooled Liquid State

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Evolution of structure and local magnetic fields during crystallization of HITPERM glassy alloys studied by in situ diffraction and nuclear forward scattering of synchrotron radiation

Physical Chemistry Chemical Physics ◽

10.1039/c5cp00245a ◽

2015 ◽

Vol 17 (42) ◽

pp. 28239-28249 ◽

Cited By ~ 7

Author(s):

Marcel Miglierini ◽

Márius Pavlovič ◽

Vít Procházka ◽

Tomáš Hatala ◽

Gerhard Schumacher ◽

...

Keyword(s):

Synchrotron Radiation ◽

Metallic Glasses ◽

Local Structure ◽

Hyperfine Interactions ◽

Nuclear Forward Scattering ◽

Glassy Alloys ◽

Evolution Of Structure ◽

Local Magnetic Fields ◽

In Situ Diffraction

In situ transformation of local structure and hyperfine interactions are simultaneously followed in real time during temperature annealing of metallic glasses.

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Local Structures around Zr, Ni and Cu for the Zr67Cu33 and Zr67Ni33 Metallic Glasses

Materials Science Forum ◽

10.4028/www.scientific.net/msf.539-543.1959 ◽

2007 ◽

Vol 539-543 ◽

pp. 1959-1963 ◽

Cited By ~ 4

Author(s):

M. Matsuura ◽

Masaki Sakurai ◽

Wei Zhang ◽

A. Inoue

Keyword(s):

Synchrotron Radiation ◽

Metallic Glasses ◽

Local Structure ◽

Liquid State ◽

Local Structures ◽

The Stability

XAFS measurements of the Cu, Ni and Zr K-edges for the melt-quenched Zr67Cu33 and Zr67Ni33 metallic glasses were curried out using synchrotron radiation at 20K. Fitting calculations for the EXAFS results reveal that local structure around Ni and Zr in Zr67Ni33 is well represented by those for the crystalline Zr2Ni, while local structure around Zr in Zr67Cu33 is better fitted by an icosahedron rather than crystalline Zr2Cu. Such differences of the local structure attribute to the differences of the stability of super-cooled liquid state and glass formability between Zr67Cu33 and Zr67Ni33 metallic glasses.

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Controlling the structure and magnetic properties of cluster-assembled metallic glasses

Materials Horizons ◽

10.1039/c8mh01013g ◽

2019 ◽

Vol 6 (4) ◽

pp. 727-732 ◽

Cited By ~ 1

Author(s):

Cahit Benel ◽

Arne Fischer ◽

Anna Zimina ◽

Ralph Steininger ◽

Robert Kruk ◽

...

Keyword(s):

Magnetic Properties ◽

Impact Energy ◽

Metallic Glasses ◽

Local Structure ◽

Amorphous Materials ◽

The Impact

The local structure and magnetic properties of amorphous materials are controlled by the impact energy of amorphous clusters.

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Local structure studies of Fe-Nb-B metallic glasses using electron diffraction

Journal of Microscopy ◽

10.1111/j.1365-2818.2006.01617.x ◽

2006 ◽

Vol 223 (3) ◽

pp. 191-194 ◽

Cited By ~ 9

Author(s):

A. HIRATA ◽

Y. HIROTSU ◽

T. OHKUBO ◽

E. MATSUBARA ◽

A. MAKINO

Keyword(s):

Electron Diffraction ◽

Metallic Glasses ◽

Local Structure

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Magnetic Eiaxaticn and Structural Transfor4Aticn in Metallic Glasses

MRS Proceedings ◽

10.1557/proc-58-141 ◽

1985 ◽

Vol 58 ◽

Cited By ~ 1

Author(s):

R.C. O'Handley

Keyword(s):

Metallic Glasses ◽

Local Structure ◽

Short Range ◽

Amorphous Materials ◽

Glassy State ◽

Local Scale ◽

Phase Changes ◽

Reversible Transformation ◽

Local Structures ◽

Cobalt Base

ABSTRACTCurrent understanding of the local atomic structure of amorphous materials is reviewed. Sane results of probing short—range order by selected techniques are cited to illustrate the degree of uniformity that exists on a local scale. Observations of phase separation and phase changes are described with particular emphasis on a temperature driven, reversible transformation of the local structure observed magnetically in several cobalt—base glasses. The manifestations and implications of such transformations within the glassy state are examined. Several examples pointing to quasi—crystalline and to non—crystalline (non—space filling) local structures are given.

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Retracted Article: Atomic-scale simulation to study the dynamical properties and local structure of Cu–Zr and Ni–Zr metallic glass-forming alloys

Physical Chemistry Chemical Physics ◽

10.1039/c5cp07676e ◽

2016 ◽

Vol 18 (10) ◽

pp. 7169-7183 ◽

Cited By ~ 5

Author(s):

M. H. Yang ◽

Y. Li ◽

J. H. Li ◽

B. X. Liu

Keyword(s):

Molecular Dynamics ◽

Molecular Dynamics Simulation ◽

Metallic Glasses ◽

Local Structure ◽

Supercooled Liquids ◽

Atomic Scale ◽

Dynamics Simulation ◽

Glass Forming ◽

Retracted Article ◽

Dynamical Properties

Molecular dynamics simulation with well-developed EAM potentials was carried out to investigate the transport properties and local atomic structure of Cu–Zr and Ni–Zr metallic glasses and supercooled liquids.

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