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Article Dans Une Revue Materials Chemistry and Physics Année : 2014

Time and temperature dependence of the adhesion of oxide scales formed on phosphorus-containing steels during short term oxidation

E. Ahtoy
  • Fonction : Auteur
M. Picard
  • Fonction : Auteur
G. Leprince
  • Fonction : Auteur
X. Wang
  • Fonction : Auteur
A. Atkinson
  • Fonction : Auteur

Résumé

The influence of phosphorus (0.15 wt.%) on iron oxide scale adhesion is studied for short time oxidation of carbon steel in air at 800 and 1000 degrees C. Adhesion is measured after cooling to room temperature by Vickers indentation. It is shown to increase with increasing oxidation time as the result of the formation of a phosphorus-containing phase at the steel-scale interface. It also exhibits much higher values after oxidation at 1000 degrees C than after oxidation at 800 degrees C. This is suggested to be due to molten oxide infiltrating the metal grain boundaries during oxidation at the highest temperature. The FeO-Fe-3(PO4)(2) eutectic temperature of 940 degrees C appears therefore as a critical parameter in the steel descaling process on the production line.

Domaines

Matériaux
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Dates et versions

hal-01121291 , version 1 (28-02-2015)

Identifiants

Citer

E. Ahtoy, M. Picard, G. Leprince, A. Galerie, Y. Wouters, et al.. Time and temperature dependence of the adhesion of oxide scales formed on phosphorus-containing steels during short term oxidation. Materials Chemistry and Physics, 2014, 148 (3), pp.1157-1162. ⟨10.1016/j.matchemphys.2014.09.038⟩. ⟨hal-01121291⟩
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