Question:medium

The heat treatment process used to enrich the steel surface by addition of Nitrogen is known as

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The clue is right in the name! - Nitrogen addition $\rightarrow$ Nitriding. - Carbon addition $\rightarrow$ Carburizing. Nitriding produces an exceptionally hard case because the formed nitrides are inherently hard and stable, avoiding the need for an aggressive oil or water quench.

Updated On: Jul 9, 2026

Annealing
Surface hardening
Tempering
Nitriding

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The Correct Option is D

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