Role of nanocrystals on the plasticity of amorphous alloy

Chang Myeon Lee, Soo Won Chae, Hwi J. Kim, Jae-chul Lee

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

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
Volume13
Issue number3
Publication statusPublished - 2007 Jun 1

Fingerprint

Amorphous alloys
plastic properties
Nanocrystals
Plasticity
nanocrystals
Shear bands
shear
High resolution electron microscopy
crack propagation
plastic deformation
Crack propagation
crystallinity
Plastic deformation
electron microscopy
cracks
Cracks
propagation
augmentation
high resolution
matrices

Keywords

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

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Role of nanocrystals on the plasticity of amorphous alloy. / Lee, Chang Myeon; Chae, Soo Won; Kim, Hwi J.; Lee, Jae-chul.

In: Metals and Materials International, Vol. 13, No. 3, 01.06.2007, p. 191-196.

Research output: Contribution to journalArticle

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