The combination of rolling-and-T6-treatments with Al2O3-reinforcingparticles effect on A6061 metal-matrix composites

Jyh Shyan Leu, Chun Lin Chu, Yiin Kuen Fuh, E. Wen Huang, Kin Fu Lin, Shyong Lee

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

AlSi alloys, with excellent properties such as low weight, low thermal expansion coefficient, and high wear-resistance, are ideal materials for the automobile and aerospace industries. However, their applications have been hampered by the coarsening of the primary-Si particles in AlSi alloys. In this study, the rolling-and-T6-treatments effect on A6061/Al2O3 metal-matrix composites is investigated. The A6061/Al2O3 metal-matrix composites with different amounts of reinforcing Al2O3 particles are examined in the aspects of wear resistance and hardness. Upon the T6 treatment, the hardness is enhanced in all cases and is summarized. The results suggest that the increase of Al2O3 particles reduce the wear rate. The possible reinforce mechanisms and the environmental temperature effects are discussed. This improvement in wear resistance is due to the particle size refinement of silicon at a high percentage-roll-reduction.

Original languageEnglish
Pages (from-to)233-239
Number of pages7
JournalProceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
Volume230
Issue number1
DOIs
StatePublished - Feb 2016

Keywords

  • Aluminum matrix composite
  • Sliding wear
  • Wear

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