Phase Transformations and Interstitial Atom Diffusion in Iron-Nitride, Iron-Carbonitride and Iron-Carbide Layers |
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| Journal | Advances in Science and Technology (Volume 46) |
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| Volume | Mass and Charge Transport in Inorganic Materials III |
| Edited by | P. VINCENZINI and V. BUSCAGLIA |
| Pages | 32-41 |
| DOI | 10.4028/www.scientific.net/AST.46.32 |
| Citation | Andreas Leineweber et al., 2006, Advances in Science and Technology, 46, 32 |
| Online since | October, 2006 |
| Authors | Andreas Leineweber, Tatiana Liapina, Thomas Gressmann, Marc Nikolussi, Eric J. Mittemeijer |
| Keywords | Cementite, Diffusion, Interstitial Alloys, Iron Nitrides, Nitriding, Nitrocarburizing |
| Abstract | α-Iron foils were exposed to various gas atmospheres containing all or a number of the components NH3, CO, H2 and N2 for different periods of time at 550°C. In this way surficial compound layers were generated which contain different iron nitrides (ε, γ’), iron carbonitride (ε) and/or iron carbide (cementite, Fe3C). These compound layers were used to study phase transformations associated with N- and/or Cdiffusion processes in the corresponding phases. These studies involved (a) the layer-growth kinetics of cementite and (b) various solid-state phase transformations occurring in compound layers upon annealing in vacuum. |
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