Nearest-neighbor coordination and chemical ordering in multicomponent bulk metallic glasses

D. Ma; A. D. Stoica; L. Yang; X. L. Wang; Z. P. Lu; J. Neuefeind; M. J. Kramer; J. W. Richardson; Th Proffen

doi:10.1063/1.2742315

Nearest-neighbor coordination and chemical ordering in multicomponent bulk metallic glasses

D. Ma, A. D. Stoica, L. Yang, X. L. Wang, Z. P. Lu, J. Neuefeind, M. J. Kramer, J. W. Richardson, Th Proffen

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Abstract

The authors report complementary use of high-energy x-ray and neutron diffraction to probe the local atomic structure in a Zr-based bulk metallic glass. By analyzing the partial coordination numbers, the authors demonstrate the presence of multiple types of solute-centered clusters in the multicomponent glass and efficient packing of the amorphous structure at atomic scale. The authors' findings provide a basis for understanding how local structures change during phase transformation and mechanical deformation of multicomponent amorphous alloys.

Original language	English
Article number	211908
Journal	Applied Physics Letters
Volume	90
Issue number	21
DOIs	https://doi.org/10.1063/1.2742315
State	Published - 2007

Funding

This research was supported by Division of Materials Science and Engineering (USDOE) under DE-AC05-00OR22725 with UT-Battelle, W-7405-ENG-82 with ISU, and W-31-109-Eng-38 with APS.

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725, W-7405-ENG-82
U.S. Department of Energy
Illinois State University	W-31-109-Eng-38
Illinois State University
Division of Materials Sciences and Engineering

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AU - Stoica, A. D.

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AU - Neuefeind, J.

AU - Kramer, M. J.

AU - Richardson, J. W.

AU - Proffen, Th

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AB - The authors report complementary use of high-energy x-ray and neutron diffraction to probe the local atomic structure in a Zr-based bulk metallic glass. By analyzing the partial coordination numbers, the authors demonstrate the presence of multiple types of solute-centered clusters in the multicomponent glass and efficient packing of the amorphous structure at atomic scale. The authors' findings provide a basis for understanding how local structures change during phase transformation and mechanical deformation of multicomponent amorphous alloys.

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Nearest-neighbor coordination and chemical ordering in multicomponent bulk metallic glasses

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