hijastettuja
Hijastettuja is a Finnish term that translates to "tempered" or "heat-treated" in English, often referring to the process of hardening metals. This process involves heating a metal, typically steel, to a specific temperature and then cooling it rapidly, usually in water or oil. This rapid cooling locks the metal's structure into a harder, more brittle state.
The primary purpose of tempering is to reduce the brittleness introduced by hardening. After a metal has
The specific temperatures and cooling rates used in hardening and tempering depend on the type of metal