Multiscale structures of Zr-based binary metallic glasses and the correlation with glass forming ability

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

6 Scopus Citations
View graph of relations

Author(s)

  • Si Lan
  • Zhenduo Wu
  • Yang Ren
  • Ho Yin Tsang

Detail(s)

Original languageEnglish
Pages (from-to)482-486
Journal / PublicationProgress in Natural Science: Materials International
Volume27
Issue number4
Online published24 Aug 2017
Publication statusPublished - Aug 2017

Link(s)

Abstract

Thermal behaviors and structures of three Zr-based binary glass formers, Zr50Cu50, Zr64Cu36 and Zr64Ni36, were investigated and compared using differential scanning calorimetry (DSC), transmission electron microscopy (TEM), high energy X-ray diffraction (XRD) and small angle X-ray scattering (SAXS). The high energy XRD results show that the bulk glass former Zr50Cu50 has a denser atomic packing efficiency and reduced medium-range order than those of marginal glass formers Zr64Cu36 and Zr64Ni36. Based on TEM observations for the samples after heat treatment at 10 K above their crystallization onset temperatures, the number density of crystals for Zr50Cu50 was estimated to be 1023–1024 m−3, which was four-orders higher than that in Zr64Cu36 and Zr64Ni36 metallic glasses. SAXS results indicate that Zr50Cu50 has higher degree of nanoscale inhomogeneities than those in Zr64Cu36 and Zr64Ni36 at as-cast state. The observed multiscale structures are discussed in terms of the phase stability and glass-forming ability of Zr-based binary glass formers.

Research Area(s)

  • Crystallization, Densely atomic packing, Glass forming ability, Metallic glasses, Nanoscale inhomogeneity

Citation Format(s)

Multiscale structures of Zr-based binary metallic glasses and the correlation with glass forming ability. / Wu, Xuelian; Lan, Si; Wu, Zhenduo; Wei, Xiaoya; Ren, Yang; Tsang, Ho Yin; Wang, Xunli.

In: Progress in Natural Science: Materials International, Vol. 27, No. 4, 08.2017, p. 482-486.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

Download Statistics

No data available