• Alloy design of ductile phosphoric iron: Ideas from archaeometallurgy

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    • Keywords


      Ancient Indian iron; transmission electron microscopy; phosphoric iron; microstructure; alloy design.

    • Abstract


      Alloy design criteria to produce ductile phosphoric irons have been proposed based on a detailed microstructural study of ancient Indian irons. The alloy design aims at avoiding phosphorus segregation to the grain boundaries by

      1. soaking the phosphoric iron at high temperatures within the ferrite + austenite region to precipitate austenite allotriomorphs,

      2. utilizing a critical amount of carbon to segregate to grain boundaries, and

      3. precipitation of some of the phosphorus in solid solution in the ferrite matrix as fine coherent phosphide precipitates.

    • Author Affiliations


      Gouthama1 R Balasubramaniam2

      1. Advanced Centre for Materials Science, Indian Institute of Technology, Kanpur 208 016, India
      2. Department of Materials and Metallurgical Engineering, Indian Institute of Technology, Kanpur 208 016, India
    • Dates

  • Bulletin of Materials Science | News

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