The Characteristics of Alumina Particle Reinforced Pure Al Matrix Composite

• Authors: N. Parvin , M. Rahimian
• Languages of publication: EN

Abstracts

EN

Al_2O_3 is widely used as the reinforcing additive in the metal matrix composites. The influence of Al_2O_3 particle size on the density, hardness, microstructure, yield stress, compression strength, and elongation of the sintered Al-Al_2O_3 composites were investigated. In the present study, 10 wt% of Al_2O_3 powder with three different particle sizes (3, 12 and 48 μm) were used in the production of the samples. Powder metallurgy technique was utilized to obtain more homogeneous Al_2O_3 distribution across the composites. The samples were cold pressed at 440 MPa, and sintered at 550C for 45 min. Results showed that the relative density of the composite was initially increased with decreasing particle size. However, it was decreased with further particle size reduction. It was also pointed out that the mechanical properties of the specimens were increased with decreasing particle size. The grain size and particle distribution homogeneity was decreased with raising the particle size.

Keywords

EN

81.05.Ni

Discipline

• 81.05.Ni: Dispersion-, fiber-, and platelet-reinforced metal-based composites

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 1
• Pages: 108-110

Dates

published

2012-01

Contributors

author

N. Parvin

• Faculty of Mining and Materials Engineering, Amirkabir University of Technology (AUT), Hafez Ave., Tehran, Iran

author

M. Rahimian

• Faculty of Engineering, Islamic Azad University - Semnan Branch, Damghan Rd. km 5, Semnan, Iran

References

• 1. M. Kok, J. Mater. Process. Technol. 161, 381 (2005)
• 2. M. Rahimian, N. Parvin, N. Ehsani, Mater. Design 32, 1031 (2011)
• 3. M. Kok, K. Ozdin, J. Mater. Process. Technol. 183, 301 (2007)
• 4. B. Torres, H. Lieblich, J. Ibanez, A. Garcia-Escorial, Scr. Mater. 47, 45 (2002)
• 5. G.E. Dieter, Mechanical Metallurgy, 3rd ed., McGraw-Hill, New York 1976
• 6. A. Slipenyuk, V. Kuprin, Yu. Milman, V. Goncharuk, J. Eckert, Acta Mater. 54, 157 (2006)
• 7. H. Sevik, S.C. Kurnaz, Mater. Design 27, 676 (2006)
• 8. L.A. Dobrzanski, A. Wlodarczyk, M. Adamiak, J. Mater. Process. Technol. 162-163, 27 (2005)
• 9. M. Sameezadeh, M. Emamy, H. Farhangi, Mater. Design 32, 2157 (2011)
• 10. A. Slipenyuk, V. Kuprin, Yu. Milman, V. Goncharuk, J. Eckert, Acta Mater. 54, 157 (2006)
• 11. R.M. German, Powder Metallurgy Science, Metal Powder Industries Federation, Princeton 1984

Identifiers

DOI

10.12693/APhysPolA.121.108