Effect of particle cracking on the strength and ductility of Al-SiCp powder metallurgy metal matrix composites

  • Asaad A. Mazen
  • M. M. Emara
Processing

Abstract

The effects of particle cracking on the strength and ductility of Al-SiCp metal matrix composite material (MMC) was investigated. The composite was manufactured using a simple powder metallurgy (PM) technique of hot pressing followed by hot extrusion. Also, the effects of reinforcement weight fraction and strain rate variations on the strength and ductility of the same composite were examined. It was found that particle cracking plays a significant role in controlling the mechanical properties of the composite. It was shown that particle cracking is possible in an MMC material made with a low strength matrix (commercially pure aluminum), and increases with the increase of reinforcement weight fraction, applied strain rate, and amount of plastic deformation. The yield strength increases as a function of reinforcement weight fraction and to a lesser extent as the strain rate increases. The tensile strength increases at low SiCp weight fractions, then remains constant or decreases as more particles are added to the matrix.

Keywords

ductility metal matrix composites particle cracking powder metallurgy strain rate strength 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A.L. Geiger and J.A. Walker: “Advances in Metal Matrix Composites,” J. Metals, 1991, 43, p. 8.Google Scholar
  2. 2.
    A.W. Urquhart: “Molten Metal MMc and CMC’s,” Adv. Mater. Proc., 1991, 7, p. 25.Google Scholar
  3. 3.
    M.K. Aghajanian, M.A. Rocazella, J.T. Burke, and S.D. Keck, “Fabrication of Mmc By A Pressureless Infiltration Technique,” J. Mater. Sci., 1991, 26, p. 447.CrossRefGoogle Scholar
  4. 4.
    T.W. Clyne and P.J. Withers, An Introduction to Metal Matrix Composites, Cambridge Univ. Press, Cambridge, UK, 1995.Google Scholar
  5. 5.
    M.G. McKimpson, and T.E. Scott: “Processing and Properties of MMC Containing Discontinuous Reinforcement,” Mater. Sci. Eng., 1989, A 107, pp. 93–106.Google Scholar
  6. 6.
    J-Yang and D.D.L. Chung: “Casting Particulate and Fibrous MMC by Vacuum Infiltration of a Liquid Metal under Inert Gas Pressure,” J. Mater. Sci., 1989, 24, p. 3605.CrossRefGoogle Scholar
  7. 7.
    J.M. Chiou and D.D.L. Chung, “Characterization of MMC Fabricated by Vacuum Infiltration of a Liquid Metal under Inert Gas Pressure,” J. Mater. Sci., 1991, 26, p. 2583.CrossRefGoogle Scholar
  8. 8.
    E.J. Lavernia, “Spray Atomized and Codeposited 6061 Al/SiC Composites,” SAMPE Quarterly, 1991, 22(2), pp. 2–12.Google Scholar
  9. 9.
    Y.B. Lui, S.C. Lim, L. Lu, and M.O. Lai: “Recent Development in the Fabrication of Metal Matrix-Particulate Composites Using Powder Metallurgy Techniques,” J. Mater. Sci., 1994, 29, p. 1999.CrossRefGoogle Scholar
  10. 10.
    I.A. Ibrahim, F.A. Mohamed, and E.J. Lavernia: “Particulate Reinforced MMC—A Review,” J. Mater. Sci., 1991, 26, p. 1137.CrossRefGoogle Scholar
  11. 11.
    D.L. McDaniels, “Analysis of Stress-Strain, Fracture, and Ductility Behavior of Aluminum Matrix Composites Containing Discontinuous SiC Reinforcement,” Metall. Trans. A, 1985, 16A, p. 1105.Google Scholar
  12. 12.
    D.L. Davidson: “Tensile Deformation and Fracture Toughness of 2014+15Vol. Pct. SiC Particulate Composite,” Metall. Trans. A, 1991, 22A, p. 113.Google Scholar
  13. 13.
    C.H.J. Davies, N. Raughunathan, and T. Sheppard: “Structure-Property Relationships of SiC Reinforced Advanced Al-Zn-Mg-Cu Alloy,” Mater. Sci. Technol., 1992, 8, p. 977.Google Scholar
  14. 14.
    J.N. Hall, J.W. Jones, and A.K. Sachdev: Mater. Sci. Eng., 1994, A 183, p. 69.Google Scholar
  15. 15.
    J.J. Lewandowski, D.S. Liu, and C. Liu: Script. Metall. Mater., 1991, 25, p. 21.CrossRefGoogle Scholar
  16. 16.
    M. Manoharan and J.J. Lewandowski: “Effect of Reinforcement Size and Matrix Microstructure on the Fracture Properties of an Al-MMC,” Mater. Sci. Eng., 1992, A 150, p. 179.Google Scholar
  17. 17.
    Y. Flom and R.J. Arsenault: Acta Metall., 1989, 37, p. 2413.CrossRefGoogle Scholar
  18. 18.
    S.V. Kamat, J.P. Hirth, and R. Mehrabian: “Work Hardening Behavior of Alumina Particulate Reinforced 2024 Aluminum Alloy MMC,” Acta Metall., 1989, 37, p. 2395.CrossRefGoogle Scholar
  19. 19.
    Anon.: ASTM-B328, Annual Book of ASTM Standards, ASTM, Philadelphia, PA, 1980.Google Scholar
  20. 20.
    W.D. Callister, Jr., Materials Science and Engineering, John Wiley & Sons, New York, 1989, p. 95.Google Scholar
  21. 21.
    D. Lee and D.A. Woodford, in The Inhomogeneity of Plastic Deformation, American Society for Metals, Metals Park, OH, 1973, p. 114.Google Scholar
  22. 22.
    W.S. Miller and F.J. Humphreys, “Strengthening-Mechanisms in Particulate MMC,” Scripta Metall. Mater., 1991, 25, p. 33.CrossRefGoogle Scholar
  23. 23.
    A. Levy and J.M. Papazian, “Tensile Properties of Short Fiber Reinforced SiC/Al Composites: Part II. Finite Element Analysis,” Metall. Trans A, 21A, 1990, p. 411.Google Scholar

Copyright information

© ASM International 2004

Authors and Affiliations

  • Asaad A. Mazen
    • 1
  • M. M. Emara
    • 2
  1. 1.Faculty of Eng.Menia UniversityMemaEgypt
  2. 2.Research EngineerThe American University in CairoCairoEgypt

Personalised recommendations