Theoretical and experimental study of the aluminization of iron and steel in the pack and in the gas phase
Identifieur interne : 001400 ( Main/Exploration ); précédent : 001399; suivant : 001401Theoretical and experimental study of the aluminization of iron and steel in the pack and in the gas phase
Auteurs : B. Nciri [France] ; L. Vandenbulcke [France]Source :
- Thin Solid Films [ 0040-6090 ] ; 1986.
Abstract
A theoretical model which combines gaseous transport and solid state diffusion with the multicomponent equilibria at the gas-pack and gas-coating interfaces was used to study the pack aluminization of iron and steel. It allows the surface composition and the growth rate to be calculated. For a given activator they depend on the temperature and the aluminium activity in the pack. A good agreement is obtained between the theoretical predictions and the experimental results when the parts to be treated are embedded in the pack. Theoretical predictions for deposition in the gas phase, onto substrates out of contact with the pack, can be qualitatively deduced, and the conditions for obtaining uniform coatings in the gas phase are pointed out.
Url:
DOI: 10.1016/0040-6090(86)90060-X
Affiliations:
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