Role of nanocrystals on the plasticity of amorphous alloy

Chang Myeon Lee, Soo Won Chae, Hwi Jun Kim, Jae Chul Lee

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


The role of nanocrystals on the plasticity of the Cu64Zr 36 amorphous alloy was studied in terms of the initiation of shear bands and the propagation of cracks. The plastic deformation behaviors of the fully amorphous and the partially crystallized samples with various degrees of crystallinity were compared. The partially crystallized alloys with an adequate amount of nanocrystals showed a considerable enhancement in their plasticity. Finite element calculations were conducted to qualitatively examine the role of the nanocrystals on the formation of the shear bands, while high-resolution electron microscopy was used to directly observe the crack propagation behavior through the matrix with (or without) nanocrystals.

Original languageEnglish
Pages (from-to)191-196
Number of pages6
JournalMetals and Materials International
Issue number3
Publication statusPublished - 2007 Jun

Bibliographical note

Funding Information:
This work is supported by the Next Generation New Technology Development Program of the Ministry of Commerce, Industry and Energy in Korea.


  • Amorphous alloy
  • Finite element method
  • Nanocrystallite
  • Plasticity
  • Shear bands

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry


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