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Solidification of an alloy

  1. Feb 14, 2012 #1
    Why does an alloy solidify over a range of temperature unlike a pure metal.
    Consider Al-17Si alloy.
    Growth of primary Si after undercooling does not take place at liquidus temperature but temperature keeps on decreasing until it reaches eutectic arrest temperature. I am not able to understand why p-Si being one component phase has a different cooling curve compared to its pure alloy( pure Si).
     
  2. jcsd
  3. Feb 14, 2012 #2

    uby

    User Avatar

    It's not clear what you're referring to. Are you talking about equilibrium cooling of a hypo-eutectic composition, where the equilibrium phase content varies with temperature?
     
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