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GAS NITRIDING [1 record]

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Alphabetical list of terms

Record 1 1985-05-14

English

Subject field(s)
  • Heat Treatment of Metals
  • Surface Treatment of Metals
  • Steel
DEF

... a case hardening process whereby nitrogen is introduced into the surface of a solid ferrous alloy by holding the metal at a suitable temperature ... in contact with a nitrogenous gas, usually ammonia. Quenching is not required for the production of a hard case.

French

Domaine(s)
  • Traitement à chaud des métaux
  • Traitements de surface des métaux
  • Acier
CONT

Nitruration gazeuse. Pratique.-La nitruration consiste à soumettre l'acier à l'action d'un courant d'ammoniac gazeux; celui-ci se dissocie partiellement grâce à la présence de fer (catalyseur), et l'azote naissant est absorbé superficiellement par le métal à l'état (alpha), alors que l'hydrogène se dégage.

Spanish

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