• Precipitation hardening in Al-Zn-Mg-Al2O3(p) composite

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    • Keywords


      Precipitation; dispersion; composite; strengthening; aluminium; alumina; hardness; toughness

    • Abstract


      The precipitation hardening of a Al-Zn-Mg-Al2O3(p) composite is explored. It is found that the peak hardness achieved is almost double that of precipitation hardening of Al-Zn-Mg alloy or dispersion strengthening of Al-Zn-Mg with 5% Al2O3(p). Toughness is marginally improved and tensile strength is one and half times that of precipitation hardened Al-Zn-Mg alloys. The ageing time for peak hardness is reduced due to acceleration of formation of precipitate.

    • Author Affiliations


      K S Kiran1 K Srinivasan1

      1. Department of Metallurgical and Materials Engineering, Karnataka Regional Engineering College, Surathkal, Srinivasnagar - 574 157, India
    • Dates

  • Bulletin of Materials Science | News

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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