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5. Glossary
carbon potential
Carbon mass fraction of a steel in thermodynamic equilibrium with this atmosphere.
nitriding potential
Parameter that controls the nitrogen enrichment of a product undergoing carbonitriding, nitriding or nitrocarburizing. Control of the nitriding process is based on the amount of undissociated NH 3 . This quantity is found in the Lehrer diagram, which identifies the most thermodynamically stable metallurgical phase as a function of nitriding potential and treatment temperature.
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