1. to combine or treat (steel or iron) with carbon or carbon monoxide to increase hardness and wear resistance
Usage: chiefly British spelling; American English uses 'carburize'; metallurgy and manufacturing term

Examples

• The factory will carburise the steel parts to make them more durable.
• Engineers carburised the metal components to improve their hardness.
• The process of carburising involves heating the steel in a carbon-rich atmosphere.
• These gears were carburised to withstand heavy mechanical stress.
• Modern carburising techniques allow precise control of carbon penetration depth.