Microstructural modulations enhance the mechanical properties in Al-Cu-(Si, Ga) ultrafine composites

Jin Man Park, Simon Pauly, Norbert Mattern, Do Hyang Kim, Ki Buem Kim, Jürgen Eckert

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Adding small amounts of Si or Ga (3 at.%) to the eutectic Al 83Cu17 alloy yields an ultrafine bimodal eutectic composite microstructure upon solidification. The as-solidified alloys exhibit a distinct microstructural length-scale hierarchy leading to a high fracture strength of around 1 GPa combined with a large compressive plastic strain of up to 30% at room temperature. The present results suggest that the mechanical properties of the ultrafine bimodal eutectic composites are strongly related to their microstructural characteristics, namely phase evolution, length-scales, and distribution of the constituent phases.

Original languageEnglish
Pages (from-to)1137-1141
Number of pages5
JournalAdvanced Engineering Materials
Volume12
Issue number11
DOIs
Publication statusPublished - 2010 Nov 1

Fingerprint

eutectic composites
Eutectics
Modulation
mechanical properties
modulation
Mechanical properties
composite materials
Composite materials
fracture strength
eutectics
solidification
hierarchies
plastics
microstructure
Solidification
Fracture toughness
Plastic deformation
room temperature
Microstructure
Ultrafine

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Park, Jin Man ; Pauly, Simon ; Mattern, Norbert ; Kim, Do Hyang ; Kim, Ki Buem ; Eckert, Jürgen. / Microstructural modulations enhance the mechanical properties in Al-Cu-(Si, Ga) ultrafine composites. In: Advanced Engineering Materials. 2010 ; Vol. 12, No. 11. pp. 1137-1141.
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Microstructural modulations enhance the mechanical properties in Al-Cu-(Si, Ga) ultrafine composites. / Park, Jin Man; Pauly, Simon; Mattern, Norbert; Kim, Do Hyang; Kim, Ki Buem; Eckert, Jürgen.

In: Advanced Engineering Materials, Vol. 12, No. 11, 01.11.2010, p. 1137-1141.

Research output: Contribution to journalArticle

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AU - Eckert, Jürgen

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