nitriding

nitriding
a case-hardening process that depends on the absorption of nitrogen into the steel. All machining, stress relieving, as well as hardening and tempering are normally carried out before nitriding. The parts are heated in a special container through which ammonia gas is allowed to pass. The ammonia splits into hydrogen and nitrogen and the nitrogen reacts with the steel penetrating the surface to form nitrides. Nitriding steels offer many advantages: a much higher surface hardness is obtainable when compared with case-hardening steels; they are extremely resistant to abrasion and have a high fatigue strength.

Mechanics glossary. 2013.

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  • Nitriding — is a heat treating process that diffuses nitrogen into the surface of a metal to create a case hardened surface. It is predominantly used on steel, but also titanium, aluminum and molybdenum. Typical applications include gears, crankshafts,… …   Wikipedia

  • Nitriding — Nitriding. См. Азотирование. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • nitriding — azotinimas statusas T sritis chemija apibrėžtis Plieno paviršiaus prisotinimas azotu. atitikmenys: angl. nitriding rus. азотирование; нитрирование …   Chemijos terminų aiškinamasis žodynas

  • nitriding steel — any steel suitable for casehardening by nitriding. [1930 35] * * * …   Universalium

  • nitriding steel — any steel suitable for casehardening by nitriding. [1930 35] …   Useful english dictionary

  • nitriding — /nuy truy ding/, n. Metall. a process of casehardening in which nitrogen is introduced into the metal by keeping it at a suitable temperature in the presence of a nitrogen source. [NITRIDE + ING1] * * * …   Universalium

  • nitriding — noun /ˈnaɪ.tɹaɪd.iŋ/ A method of case hardening steel by the surface absorption of nitrogen by heating with ammonia …   Wiktionary

  • nitriding — Смотри Азотирование …   Энциклопедический словарь по металлургии

  • nitriding — Смотри Нитроцементация …   Энциклопедический словарь по металлургии

  • nitriding — /ˈnaɪˌtraɪdɪŋ/ (say nuy.truyding) noun the introduction of nitrogen into the surface of certain types of steel by heating in contact with partially dissociated ammonia, a form of case hardening. {nitrid(e) + ing1} …  

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