Characterization of Cu₄₇Zr₄₃Al₆Y₄ metallic glass

Abstract

This paper presents the research results of a melt-spun Cu47Zr43Al6Y4 metallic glass. Examinations of its surface, chemical composition and electric resistance had previously been performed and published. Characterization was continued by an x-ray diffraction (XRD) analysis, differential scanning calorimetry (DSC) and microhardness measurements. XRD analysis has unambiguously confirmed that the sample is completely amorphous. DSC measurements were performed with different heating rates which made it possible not only to calculate activation energies, but also to analyse the crystallization process itself. Microhardness measurements have been performed on both sides of the sample.

Optimizing microhardness testing of metallic glasses

“…The samples are metallic glasses from the CuZrAl system, were produced using melt-spinning technique and have mutually similar structural and thermodynamic properties which were previously comprehensively studied [5,6]. Since the physical interpretation of H v of these samples is not the focus of this study, the samples are designated as A, B and C, and their thicknesses are presented in Table 1.…”