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Production of high strength Al-Al 2O 3 composite by accumulative roll bonding

Rezayat, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.compositesa.2011.10.015
  3. Abstract:
  4. Recently accumulative roll bonding has been used as a novel method to produce particle reinforced metal matrix composites. In this study, aluminum matrix composite reinforced by submicron particulate alumina was successfully produced and the effects of number of ARB cycles and the amount of alumina content on the microstructure and mechanical properties of composites were investigated. According to the results of tensile tests, it is shown that the yield and tensile strengths of the composite are increased with the number of ARB cycles. Scanning electron microscopy (SEM) reveals that particles have a random and uniform distribution in the matrix by the ARB cycles and a strong mechanical bonding takes place at the interface of particle-matrix. It is also found that the tensile strength of the composite, as a function of alumina content, has a maximum value at 2 vol.%, which is 5.1 times higher than that of the annealed aluminum
  5. Keywords:
  6. A. Metal-matrix composites (MMCs) ; B. Mechanical properties ; D. Fractography ; E. Accumulative roll bonding ; Accumulative roll bonding ; Alumina content ; Aluminum matrix composites ; High strength ; Matrix ; Maximum values ; Mechanical bonding ; Metal matrix composites ; Microstructure and mechanical properties ; Particle reinforced metal matrix composites ; Sub-micron particulates ; Tensile tests ; Uniform distribution ; Yield and tensile strength ; Alumina ; Aluminum ; Fractography ; Fracture mechanics ; Matrix algebra ; Mechanical properties ; Metallic matrix composites ; Particle reinforced composites ; Scanning electron microscopy ; Tensile strength ; Tensile testing ; Roll bonding
  7. Source: Composites Part A: Applied Science and Manufacturing ; Volume 43, Issue 2 , February , 2012 , Pages 261-267 ; 1359835X (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S1359835X1100354X