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(1) Saturation of the surface layer of steel articles with carbon to increase hardness and wear resistance (after quenching and tempering); the same as case hardening.

(2) Introduction of carbon (in the form of carbon-containing materials) into the molten steel produced in a steel-smelting plant to raise the carbon content to a specified level.

(3) Addition of carbon-containing materials to the charge during steel smelting by the carburization process for scrap.

(4) Formation of iron carbide, Fe3C, during blast-furnace smelting; it begins immediately after the reduction of iron oxides.

References in periodicals archive ?
The major influencing parameters in carburization are the holding time, carburizing temperature, carbon potential and the quench time in oil as reported by Shewmon [18].
These liquefied petroleum gases such as butane and propane for domestic and propane as carburization product use.
However, in the carburization of a gear, the carbon level in the carburized region becomes either equal to or higher than the carbon level in the tool steels.
Surface hardness levels increased from 5456 Rockwell Hardness after carburization to 59-61 Rockwell Hardness after UIT.
HSS carburization is less frequent, but similarly develops an extremely brittle surface layer that, if concentrated at the tool tip, can cause rapid failure.