nitriding

[nahy-trahy-ding]
noun Metallurgy.
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.

Origin:
nitride + -ing1

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nitriding (ˈnaɪtraɪdɪŋ)
 
n
a type of case-hardening in which steel is heated for long periods in ammonia vapour so that nitrogen produced by dissociation on the surface enters the steel

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Example sentences
The process would be modified to permit nitriding as well as carburization as option.
First, because the nitriding is performed at elevated temperatures, pin-hole defects are not expected.
Surface treatments such as nitriding and oxidizing can improve the surface wear properties.
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