Carburizing is sometimes called case hardening. It is a process by which
carbon introduced to the surface of a ferrous alloy at an elevated
temperature. It produce a case or outer of a higher carbon content which is
made higher than the core by Quenching. Therefore, the surface becomes hard
and abrasion resistance while the interior gains toughness.
Carburizing is widely applied to
automobile industry in which the components require high surface hardness
for wear resistance. Normally, steel is commonly that which includes
approximately ~ 0.2% carbon.
