Solid-state nitrogen transfer
Thermochemical treatment theories - Nitriding - Nitrocarburizing- Iron-nitrogen binary systems and iron-nitrogen ternary systems - Compound layer
Article REF: M1224 V1
Solid-state nitrogen transfer
Thermochemical treatment theories - Nitriding - Nitrocarburizing- Iron-nitrogen binary systems and iron-nitrogen ternary systems - Compound layer

Authors : Michel GANTOIS, Jacky DULCY

Publication date: June 10, 2010, Review date: March 26, 2024 | Lire en français

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3. Solid-state nitrogen transfer

3.1 Binary system Fe–N

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3.1.1 Multiphase diffusion

The fact that the iron nitrides ε – Fe 2 N 1-x and γ′ - Fe 4 N 1-x exhibit an extended compositional range (approx. 0.15 wt.% for γ′ and approx. 4 wt.% for ε at 570°C) explains why the ε/γ′ configuration, on the α diffusion layer in a binary system, presents a succession of planar interfaces...

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