Hardening (metallurgy)
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2008-07-04T10:20:56Z
JAnDbot
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In [[metallurgy]], '''hardening''' describes techniques to increase the [[hardness]] of a material. There are five main hardening mechanisms:
* [[Hall-Petch]] hardening, a hardening that result due to a decrease in grain size.
* [[Cold working]], also called stain hardening
* [[Solid solution|Solid Solution strengthening]]
* [[precipitation hardening]]
* [[Martensite|Martensitic transformations]]
All hardening mechanisms, except of the martensitic transformation, introduce dislocations or defects in a crystal lattice that act as barriers to slip.
==See also==
* [[Heat treatment]]
* [[Cold work]]
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[[Category:Metallurgy]]
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