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Work hardening

  1. May 4, 2010 #1
    This might be more of a simple engineering question, but does work hardening (cold worked) of say a metal create smaller, more numerous crystal grains (and thus, more grain boundaries)? or does it just create dislocations in the crystal?
     
    Last edited: May 4, 2010
  2. jcsd
  3. May 4, 2010 #2

    Andy Resnick

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    That's a good question. My understanding is that work hardening creates numerous dislocation lines, which over the course of treatment tangle and have the effect of increasing the strength of the material

    http://en.wikipedia.org/wiki/Work_hardening

    Supposedly, vintage cymbals have a "special sound" from work hardening- caused by being struck for 30+ years.
     
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