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Published March 2004 | Published
Journal Article Open

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

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

Additional Information

© 2004 Oldenbourg Wissenschaftsverlag GmbH. Received January 16, 2004; accepted January 26, 2004. This study was supported by the National Science Foundation (CAREER Award to E.Ü.: 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.

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August 22, 2023
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October 18, 2023