In-situ neutron scattering study of crystallization in a Zr-based bulk metallic glass

D. Ma, A. D. Stoica, X. L. Wang, Z. P. Lu, T. Proffen

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Crystallization of a Zr-based bulk metallic glass (Zr50.4Cu 40.6Al9) upon isothermal annealing has been investigated using in-situ neutron diffraction and the pair distribution function (PDF) method. By extracting the contribution of the crystalline phase from the total scattering, we are able to obtain the real-time structure factor and pair distribution function for the crystalline phase as well as its volume fraction. Our analysis shows that the crystallization follows the Johnson-Mehl-Avrami law with a time exponent f 4.0 ± 0.2, indicating a three-dimensional nucleation and growth process. The analysis method established in the present study paves a new way for probing the kinetics of phase transformation for a broad range of non-crystalline materials including liquids and glasses.

Original languageEnglish
Pages (from-to)537-542
Number of pages6
JournalApplied Physics A: Materials Science and Processing
Volume99
Issue number3
DOIs
StatePublished - Jun 2010
Externally publishedYes

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