enhancements of materials

    Cards (8)

    • work hardening: improved tensile strength and hardness in the localised area when a metal is cold worked.
    • anealing: heating work hardened metal and very slowly cooling it, making it easier to work by making it less brittle and more ductile
    • Case hardening: a process for hardening the surface of steels with less than 0.4% carbon content
    • Carburising: changes the chemical composition of the surface of low carbon steel so it absorbs more carbon and increases surface hardening.
    • Quenching: rapid cooling of heat treated metal
    • Hardening and tempering: heating medium or high carbon steels to a given temperature , rapidly cool via quenching and then heating to a set temperature to remove excess hardening.
    • Tempering colour: the colour seen on metal that indicates the temperature at which brittleness is removed
    • Critical point: the temperature at which the atoms of carbon and steel mix freely before bonding together and becoming solid.