Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Secondary phase, heat treatment

  1. May 24, 2014 #1
    "Precipitation hardening is a heat treatment that distributes secondary phases more evenly in an alloy..." What does it mean by a secondary phase?
  2. jcsd
  3. May 24, 2014 #2


    User Avatar
    Staff Emeritus
    Science Advisor

    A second phase or secondary phase has a different stoichiometry (composition) and microstructure than the primary phase of an alloy. Second phases are usually intermetallic compounds.

    For example in nickel superalloys, Al and Ti form nickel aluminides or titanides.


  4. May 24, 2014 #3
    Thank you
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Secondary phase, heat treatment
  1. Steel heat treatment (Replies: 1)

  2. Heat Treatment (Replies: 2)