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Effect of ageing time on mechanical properties and tribological behaviour of aluminium hybrid composite

  • N. Radhika and R. Subramanian
Published/Copyright: September 15, 2014
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 105 Issue 9

Abstract

Aluminium/alumina/graphite hybrid metal matrix composites prepared by using the stir casting technique were heat treated to enhance mechanical properties such as strength, hardness and wear resistance. The present study evaluates the effect of ageing time on the hardness, tensile strength and tribological behaviour of both unreinforced Al-Si10Mg alloy and aluminium hybrid metal matrix composites. Results for composite samples were compared with those of as-cast samples. Results showed that heat treated samples of alloy and composite showed higher hardness, tensile strength and tribological properties compared to both as-cast alloy and composite. Among the different ageing times employed, specimens aged for 4 hours showed maximum mechanical and tribological properties. Investigations of the worn surfaces were carried out using scanning electron microscopy to understand the wear mechanism.

Keywords: Metal matrix composites; Stir casting; Mechanical properties; Wear behaviour; Ageing time
* Correspondence address, Dr. N. Radhika, Assistant Professor, Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Ettimadai, Coimbatore- 641 112, India, Tel.: +919443566174, Fax: +914222656274, E-mail:

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Received: 2014-01-17
Accepted: 2014-04-28
Published Online: 2014-09-15
Published in Print: 2014-09-15

© 2014, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111098
Keywords for this article
Metal matrix composites; Stir casting; Mechanical properties; Wear behaviour; Ageing time

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Diffusivities and atomic mobilities of an Sn–Ag–Bi–Cu–Pb melt
  5. Experimental study of the phase relations in the Fe–Cr–Si ternary system at 700°C
  6. Effect of molybdenum on the microstructure, mechanical properties and corrosion behavior of Ti alloys
  7. Mechanism of grain refinement and coarsening in undercooled Ni–Fe alloy
  8. Effects of copper content and liquid separation on the microstructure formation of Co–Cu immiscible alloys
  9. Influence of the solidification temperature range on Gasar structures made from Cu–Mn alloys
  10. Effect of ageing time on mechanical properties and tribological behaviour of aluminium hybrid composite
  11. Microstructure and tensile properties of a friction stir welded Al–Mg–Si alloy
  12. Lüders effect in Al 99.7% extruded via the KoBo method
  13. Reduced graphene oxide nanocomposites with different diameters and crystallinity of TiO2 nanoparticles – synthesis, characterization and photocatalytic activity
  14. Constitutive modelling of mill loads during hot rolling of AISI 321 austenitic stainless steel
  15. X-ray stress measurement with two-dimensional detector based on Fourier analysis
  16. People
  17. People
  18. People
  19. DGM News
  20. Personal
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