High pressure study of a Zr-based bulk metallic glass and its composite

Itzhak Halevy; Ersan Üstündag; S. Salhov; Alan F. Yue; A. Broide; Jingzhu Hu

doi:10.1524/zkri.219.3.166.29097

High pressure study of a Zr-based bulk metallic glass and its composite

Itzhak Halevy, Ersan Üstündag^*, S. Salhov, Alan F. Yue, A. Broide, Jingzhu Hu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Energy dispersive X-ray diffraction was used to study the structural evolution of a bulk metallic glass (BMG) alloy and its composite with W particles under hydrostatic pressure. The diffraction data, especially the pair distribution function (PDF) of the BMG allowed the direct measurement of its elastic strain. The results suggest that PDF patterns of BMGs can be used to deduce their strain evolution in composites as well as in monolithic form. Although the PDF method of strain measurement in amorphous alloys offers lower resolution compared to the analysis of Bragg reflections from crystalline materials, the PDF techique yields valuable information about the deformation of BMGs.

Original language	English
Pages (from-to)	166-171
Number of pages	6
Journal	Zeitschfrift fur Kristallographie
Volume	219
Issue number	3
DOIs	https://doi.org/10.1524/zkri.219.3.166.29097
Publication status	Published - 2004
Externally published	Yes

Funding

Acknowledgments. This study was supported by the National Science Foundation (CAREER Award to E.Û.: DMR-9985264) and the Caltech Center for Structural Amorphous Metals (Army Research Office grant no. DAAD19–01-0525). The work at the National Synchrotron Light Source (NSLS) was funded by the U.S. Department of Energy under Contract No. DE-AC02–76CH00016.

Funders	Funder number
Caltech Center for Structural Amorphous Metals
National Science Foundation	DMR-9985264
U.S. Department of Energy
Army Research Office

Keywords

Elastic strain
Metallic glass
PDF analysis
Pressure
Zr-based bulk metallic glass

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Cite this

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AU - Salhov, S.

AU - Yue, Alan F.

AU - Broide, A.

AU - Hu, Jingzhu

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AB - Energy dispersive X-ray diffraction was used to study the structural evolution of a bulk metallic glass (BMG) alloy and its composite with W particles under hydrostatic pressure. The diffraction data, especially the pair distribution function (PDF) of the BMG allowed the direct measurement of its elastic strain. The results suggest that PDF patterns of BMGs can be used to deduce their strain evolution in composites as well as in monolithic form. Although the PDF method of strain measurement in amorphous alloys offers lower resolution compared to the analysis of Bragg reflections from crystalline materials, the PDF techique yields valuable information about the deformation of BMGs.

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High pressure study of a Zr-based bulk metallic glass and its composite

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Keywords

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