Materials and corrosion, Vol. 62 N° 6. Materials and corrosion - Juin 2011
| Titre : | Materials and corrosion, Vol. 62 N° 6. Materials and corrosion - Juin 2011 |
| Type de document : | Bulletin |
| Paru le : | 11/09/2011 |
Dépouillements
Article : texte imprimé
S. Yamazaki, Auteur ;
F. Takahashi, Auteur ;
T. Kubota, Auteur
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Internal oxidation phenomena during decarburization annealing are very important in the manufacturing process of grain oriented electrical steel. In the present study, the internal oxidation of nearly pure Fe–3%Si alloy was investigated, as a ba[...]
Article : texte imprimé
H. Hattendorf, Auteur
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Chromium aluminum yttrium (FeCrAlY) alloys owe their low oxidation rate to the formation of a slow growing α-alumina scale. For material used for heating elements not only the life time and the behavior of the resistance during the life time is [...]
Article : texte imprimé
J. Jedlinski, Auteur ;
J.-L. Grosseau-Poussard, Auteur ;
Bonnet, G., Auteur
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Early oxidation of unmodified and yttrium-implanted or chromium-implanted β-NiAl intermetallic compound at 1473 K was studied using a combination of two-stage-oxidation exposure with 18O2 as a tracer, SIMS elemental distribution analysis (depth [...]
Article : texte imprimé
N. K. Othman, Auteur ;
J. Zhang, Auteur ;
D. J. Young, Auteur
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Model Fe–Cr alloys containing 9, 17 or 25 wt% Cr were subjected to repeated 1 h cycles of exposure at 700 °C to flowing gas mixtures of Ar-20O2, Ar-20O2-5H2O and Ar-5O2-20H2O (all in volume %) for up to 400 cycles. The kinetics and morphological[...]
Article : texte imprimé
J. Zurek, Auteur ;
G. H. Meier, Auteur ;
E. Wessel, Auteur
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Recently it was proposed, that the hampered formation of external protective chromia scales on FeCr-alloys in water vapour containing, low-pO2 gases is correlated with enhanced internal oxidation of chromium. In the present study the internal ox[...]
Article : texte imprimé
An electrodeposited Ni–CeO2 composite was used as a “precursor film” for a novel CeO2-dispersed chromium coating deposited using a traditional pack cementation method. The substrate was a carbon steel. For comparison, chromium coatings were also[...]
Article : texte imprimé
Q. Wu, Auteur ;
J. Zhang, Auteur ;
D. J. Young, Auteur
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The metal dusting behaviour of total 11 nickel- and cobalt-base alloys at 680 °C in a gas of 68%CO[BOND]31%H2[BOND]1%H2O (aC = 19.0, equation image = 5.4 × 10−25 atm) was investigated. All samples were electropolished and reacted in a thermal c[...]
Article : texte imprimé
L. Martinelli, Auteur ;
F. Balbaud-Célérier, Auteur
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Previous studies showed that the oxidation of T91 (Fe-9Cr martensitic steel) in liquid Pb-Bi eutectic leads to the formation of a duplex oxide layer containing an inner Fe2.3Cr0.7O4 spinel layer and an upper magnetite layer. The magnetite layer [...]
Article : texte imprimé
J. M. Brossard, Auteur ;
I. Diop, Auteur ;
X. Chaucherie, Auteur
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Combustion of municipal waste generates highly corrosive gases (HCl, SO2, NaCl, KCl, and heavy metals chlorides) and ashes containing alkaline chlorides and sulfates. Currently, corrosion phenomena are particularly observed on superheater's tube[...]
Article : texte imprimé
B. A. Pint, Auteur ;
Y. Zhang, Auteur
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The oxidation resistance of Al-rich coatings made by chemical vapor deposition and pack cementation was examined on representative ferritic-martensitic (FM, e.g. Grade 91, Fe-9Cr-1Mo) and austenitic steel substrates at 650°-800 °C. To evaluate t[...]
Article : texte imprimé
A. Agüero, Auteur ;
V. Gonzlez, Auteur ;
M. Gutierrez, Auteur
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Steam oxidation has become an important issue for steam power plants as operating temperatures increase from the current 550 to 600–650 °C. For the last 10 years several groups have been carrying out steam oxidation testing of both uncoated subs[...]
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