Deformation behavior of aluminum alloy matrix composites reinforced with few-layer graphene

S. E. Shin, DongHyun Bae

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

Microstructure and mechanical properties of aluminum alloy 2024 (Al2024)/few-layer graphene (FLG) composites produced by ball milling and hot rolling have been investigated. The presence of dispersed FLGs with high specific surface area significantly increases the strength of the composites. The composite containing 0.7 vol.% FLGs exhibits tensile strength of 700 MPa, two times higher than that of monolithic Al2024, and around 4% elongation to failure. During plastic deformation, restricted dislocation activities and the accumulated dislocation at between FLGs may contribute to strengthening of Al2024/FLG composites.

Original languageEnglish
Pages (from-to)42-47
Number of pages6
JournalComposites Part A: Applied Science and Manufacturing
Volume78
DOIs
Publication statusPublished - 2015 Aug 11

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Graphite
Graphene
Aluminum alloys
Composite materials
Hot rolling
Strengthening (metal)
Ball milling
Specific surface area
Elongation
Plastic deformation
Tensile strength
Mechanical properties
Microstructure

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials

Cite this

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abstract = "Microstructure and mechanical properties of aluminum alloy 2024 (Al2024)/few-layer graphene (FLG) composites produced by ball milling and hot rolling have been investigated. The presence of dispersed FLGs with high specific surface area significantly increases the strength of the composites. The composite containing 0.7 vol.{\%} FLGs exhibits tensile strength of 700 MPa, two times higher than that of monolithic Al2024, and around 4{\%} elongation to failure. During plastic deformation, restricted dislocation activities and the accumulated dislocation at between FLGs may contribute to strengthening of Al2024/FLG composites.",
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N2 - Microstructure and mechanical properties of aluminum alloy 2024 (Al2024)/few-layer graphene (FLG) composites produced by ball milling and hot rolling have been investigated. The presence of dispersed FLGs with high specific surface area significantly increases the strength of the composites. The composite containing 0.7 vol.% FLGs exhibits tensile strength of 700 MPa, two times higher than that of monolithic Al2024, and around 4% elongation to failure. During plastic deformation, restricted dislocation activities and the accumulated dislocation at between FLGs may contribute to strengthening of Al2024/FLG composites.

AB - Microstructure and mechanical properties of aluminum alloy 2024 (Al2024)/few-layer graphene (FLG) composites produced by ball milling and hot rolling have been investigated. The presence of dispersed FLGs with high specific surface area significantly increases the strength of the composites. The composite containing 0.7 vol.% FLGs exhibits tensile strength of 700 MPa, two times higher than that of monolithic Al2024, and around 4% elongation to failure. During plastic deformation, restricted dislocation activities and the accumulated dislocation at between FLGs may contribute to strengthening of Al2024/FLG composites.

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