Deformation behavior of amorphous composites containing crystalline nickel in the supercooled liquid region

Moo Young Huh, E. S. Park, H. J. Kim, J. C. Bae

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Amorphous composites comprising various volume fractions of crystalline nickel were produced by means of electroless coating of nickel on the amorphous powder and subsequent spark plasma sintering of the coated powder. The deformation behavior was determined by the uniaxial compression test at temperatures in the supercooled liquid region. Homogeneous plastic flow was the dominant deformation at 723 K, while inhomogeneous deformation prevailed at 733 K. Finite elements calculations disclose that reducing the strain concentration in soft nickel provides the resistance against the formation of macro-cracks in the composites.

Original languageEnglish
Pages (from-to)916-919
Number of pages4
JournalMaterials Science and Engineering A
Volume448-451
DOIs
Publication statusPublished - 2007 Mar 25

Fingerprint

Nickel
nickel
Crystalline materials
Powders
composite materials
Composite materials
Liquids
liquids
Spark plasma sintering
plastic flow
compression tests
sparks
Plastic flow
Macros
Volume fraction
sintering
Compaction
cracks
Cracks
coatings

Keywords

  • Amorphous composites
  • Finite element method
  • Strain and stress states
  • Supercooled liquid region

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Deformation behavior of amorphous composites containing crystalline nickel in the supercooled liquid region. / Huh, Moo Young; Park, E. S.; Kim, H. J.; Bae, J. C.

In: Materials Science and Engineering A, Vol. 448-451, 25.03.2007, p. 916-919.

Research output: Contribution to journalArticle

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