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

Colour of inox steel surface upon heating

  1. Dec 10, 2011 #1
    If you heat inox steel in presence of air, up to a specific temperature, you get a yellow colour of the metal surface; increasing the temperature it becomes red; still increasing, blue.
    Is it due to the formation of oxide layers of different thickness? Which effect is responsible of the colour?
     
  2. jcsd
  3. Dec 10, 2011 #2

    Astronuc

    User Avatar
    Staff Emeritus
    Science Advisor

    Thickness (number of layers) of the oxide is the key factor. Different thicknesses produce different scattering or interference.

    http://www.bssa.org.uk/topics.php?article=140

    http://www.tpub.com/steelworker1/11.htm
     
  4. Dec 10, 2011 #3
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook




Loading...
Similar Threads for Colour inox steel
B Coloured beam in a discharge tube