J. Mater. Sci. Technol. ›› 2014, Vol. 30 ›› Issue (6): 609-615.DOI: 10.1016/j.jmst.2014.05.003

• Research-article • Previous Articles     Next Articles

Plastic Flow of a Cu50Zr45Ti5 Bulk Metallic Glass Composite

Wang G.1, *, Pauly S.2, Gorantla S.2, Mattern N.2, Eckert J.2, 3   

  1. 1. Laboratory for Microstructures, Shanghai University, 200444 Shanghai, China;
    2. IFW-Dresden, Institute for Complex Materials, Helmholtzstr. 20, D-01069 Dresden, Germany;
    3. TU Dresden, Institute of Materials Science, D-01062 Dresden, Germany
  • Received:2013-11-30 Online:2014-06-20 Published:2014-07-31
  • Contact: Corresponding author. Prof., Ph.D.; Tel./Fax: +86 21 66135269

Abstract: By modifying the cooling rate, a Cu50Zr45Ti5 alloy with various structures was developed. A fully glassy rod and specimens with different sizes and volume fractions of nanocrystals were produced. The relationship between the structure and mechanical properties of the Cu50Zr45Ti5 alloy was investigated. The different structures result in a transition of the deformation mechanism from being dominated by shear banding to being governed by dislocation action accompanied by shear band formation. These different plastic deformation mechanisms were discussed in the framework of self-organized critical behavior.

Key words: Bulk metallic glass, Plasticity, Self-organized critical behavior, Bulk metallic glass composite