• Electron microscopic studies of thermomechanically aged 2218 aluminium alloy

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    • Keywords


      Thermoechanical ageing; 2218 Al alloy; transmission electron metallography; plastic deformation; precipitation; zone formation; dislocation; microstructure

    • Abstract


      The effect of thermomechanical ageing (TMA) treatment on the microstructure and mechanical properties of 2218 Al alloy has been studied. This was followed by hardness measurements and transmission electron metallography (TEM). The 2218 Al alloy was given various thermomechanical ageing treatments including partial peak ageing, warm rolling and further ageing to peak hardness level. Without thermomechanical treatment the peak hardness value was 130 VHN. With thermomechanical treatment there was an overall improvement in hardness. This is attributed to the combined effect of dislocation precipitate networks and the fineness ofθ′ particles.

    • Author Affiliations


      Mukesh Kumar1 S Singh1 D B Goel1

      1. Department of Metallurgical Engineering, University of Roorkee, Roorkee - 247 667, India
    • Dates

  • Bulletin of Materials Science | News

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