Energy absorption capability of amorphous alloys during homogenous deformation

Kyoung Won Park, Chang Myeon Lee, Hong Gi Lee, Jae Hoon Lee, Jae Chul Lee

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Elastostatic compression tests were carried out on amorphous alloys to evaluate their energy absorption capability during homogeneous deformation at room temperature. Experiments demonstrated that a compressive stress below the global yield imposed on amorphous alloys for extended periods causes homogeneous plastic strain associated with the irreversible structural disordering. During the disordering process, free volume was created, dissipating the externally applied strain energy and the rate of creation was found to converge to a saturated value. We evaluated the capability of energy absorption of amorphous alloys during homogeneous deformation using recent theories on the evolution of the structural state.

Original languageEnglish
Pages (from-to)572-576
Number of pages5
JournalJournal of Korean Institute of Metals and Materials
Volume46
Issue number9
Publication statusPublished - 2008 Sep

Keywords

  • Amorphous alloy
  • Free volume
  • Relaxation heat
  • Strength
  • Structural disordering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Modelling and Simulation
  • Surfaces, Coatings and Films
  • Metals and Alloys

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