Mechanical behavior of Cu54Ni6Zr22Ti18 bulk amorphous alloy during multi-pass warm rolling

H. J. Kim, J. K. Lee, T. S. Kim, J. C. Bae, E. S. Park, M. Y. Huh, Do Hyang Kim

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Cu-Ni-Zr-Ti bulk amorphous thin strips were produced by multi-pass warm rolling of the amorphous powder at temperatures in the supercooled liquid region. Process variables for rolling of the bulk amorphous strips were properly controlled to prevent onset of crystallization and failure during rolling up to three passes. During rolling of the amorphous powder, both the deformation and densification took place and the newly developed surface on the deformed amorphous particles enhances the consolidation leading to an increase in the strength. The strain state during rolling was analyzed by use of the finite element method. FEM results indicate that a high strain rate larger than 10 s-1 prevails during rolling and gradients of the tensile strain rate in the rolling direction may initiate cracks.

Original languageEnglish
Pages (from-to)929-933
Number of pages5
JournalMaterials Science and Engineering A
Volume449-451
DOIs
Publication statusPublished - 2007 Mar 25

Fingerprint

Amorphous alloys
Powders
Strain rate
Finite element method
strain rate
strip
Tensile strain
Crystallization
Densification
Consolidation
Particles (particulate matter)
consolidation
densification
Cracks
finite element method
cracks
Liquids
crystallization
gradients
liquids

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Kim, H. J. ; Lee, J. K. ; Kim, T. S. ; Bae, J. C. ; Park, E. S. ; Huh, M. Y. ; Kim, Do Hyang. / Mechanical behavior of Cu54Ni6Zr22Ti18 bulk amorphous alloy during multi-pass warm rolling. In: Materials Science and Engineering A. 2007 ; Vol. 449-451. pp. 929-933.
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Mechanical behavior of Cu54Ni6Zr22Ti18 bulk amorphous alloy during multi-pass warm rolling. / Kim, H. J.; Lee, J. K.; Kim, T. S.; Bae, J. C.; Park, E. S.; Huh, M. Y.; Kim, Do Hyang.

In: Materials Science and Engineering A, Vol. 449-451, 25.03.2007, p. 929-933.

Research output: Contribution to journalArticle

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AU - Kim, H. J.

AU - Lee, J. K.

AU - Kim, T. S.

AU - Bae, J. C.

AU - Park, E. S.

AU - Huh, M. Y.

AU - Kim, Do Hyang

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AB - Cu-Ni-Zr-Ti bulk amorphous thin strips were produced by multi-pass warm rolling of the amorphous powder at temperatures in the supercooled liquid region. Process variables for rolling of the bulk amorphous strips were properly controlled to prevent onset of crystallization and failure during rolling up to three passes. During rolling of the amorphous powder, both the deformation and densification took place and the newly developed surface on the deformed amorphous particles enhances the consolidation leading to an increase in the strength. The strain state during rolling was analyzed by use of the finite element method. FEM results indicate that a high strain rate larger than 10 s-1 prevails during rolling and gradients of the tensile strain rate in the rolling direction may initiate cracks.

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