Casehardening
Casehardening is a surface hardening process for ferrous alloys, most commonly steel. It involves diffusing carbon into the surface of a low-carbon steel part to create a hard, wear-resistant outer layer, while the core remains tough and ductile. This differential hardening is achieved by heating the steel in a carbon-rich environment.
There are several methods of casehardening. Pack carburizing involves heating steel packed in a carbonaceous material,
The depth of the hardened case depends on the temperature, time, and type of carburizing medium. After