Solidification of an alloy

  • Thread starter pukb
  • Start date
  • #1
94
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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).
 

Answers and Replies

  • #2
uby
176
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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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