Effect of microwave heat treating processing on frictional behaviour of aluminium alloy 2900 composites

Ashwath Pazhani, M. Anthony Xavior

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The sliding wear behaviour of microwave processed, SiCp and Al2O3p reinforced aluminium alloy 2900 and 2024 metal matrix composites prepared by powder metallurgy method was investigated in a pin on disc system. The objective is to determine the effects of novel alloying elements of AA 2900, ceramic addition and microwave aging process on the strength to tribological properties. This composite is evaluated to be an effective replacement for conventionally available AA 2024 composites in brake applications. Compared to conventional heat treating processes, microwave processing used for heat treating the samples is observed to be novel method in improving the strength–microstructural–tribological properties. AA 2900 with 6 wt-% Al2O3 exhibited good strength to microstructure relationship with excellent wear characteristics compared to AA 2024 composites which are governed by alloying elements in AA 2900. 2 H aged AA 2900 with 6 wt-% Al2O3 sample exhibited good frictional coefficient values with good density and strength characteristics. Hence, it is observed that alloying elements in AA 2900 and microwave processing have enhanced the strength to tribological behaviour where the property enhancement is achieved only through ceramic reinforcements.
Original languageEnglish
Pages (from-to)85-96
Number of pages12
JournalTribology - Materials, Surfaces and Interfaces
Issue number2
Early online date20 Mar 2018
Publication statusE-pub ahead of print - 20 Mar 2018
Externally publishedYes


  • powder metallurgy
  • microwave processing
  • aluminium alloys
  • wear


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