Formation, thermal stability and deformation behavior of graphite-flakes reinforced Cu-based bulk metallic glass matrix composites

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

16 Scopus Citations
View graph of relations

Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)132-138
Journal / PublicationMaterials Science and Engineering A
Volume435-436
Publication statusPublished - 5 Nov 2006

Abstract

Graphite-flake reinforced Cu47Ti34Zr11Ni8 bulk metallic glass matrix composite was fabricated by water-cooled copper mould cast. Most of the graphite flakes still keep unreacted and distribute uniformly in the amorphous matrix except that some reactive wetting occurs by the formation of TiC particles around the flakes. It reveals that the presence of graphite flakes does not affect the onset of the glass transition temperature, crystallization reaction and liquidus of the metallic glass. The resulting material shows obvious serrated flow and higher fracture strength under room temperature compressive load, comparing with the monolithic bulk metallic glass (BMG). Three types of interaction between the shear bands and graphite flakes, namely, shear band termination, shear bands branching and new shear bands formation near the graphite flakes can be observed by quasi-static uniaxial compression test and bonded interface technique through Vickers indentation. © 2006 Elsevier B.V. All rights reserved.

Research Area(s)

  • Bulk metallic glass, Composites, Mechanical properties

Citation Format(s)

Formation, thermal stability and deformation behavior of graphite-flakes reinforced Cu-based bulk metallic glass matrix composites. / Sun, Y. F.; Shek, C. H.; Guan, S. K.; Wei, B. C.; Geng, J. Y.

In: Materials Science and Engineering A, Vol. 435-436, 05.11.2006, p. 132-138.

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