0000000000602932

AUTHOR

S. Perrier

showing 2 related works from this author

Oxidation mechanism of the Inconel 601 alloy at high temperatures

2010

The Inconel 601 alloy oxidation was performed in air, in the temperature range 1000-1150 °C, during 90 h. Kinetic results show that the parabolic behavior is always followed in this temperature range. The Arrhenius plot of the kp values shows two different activation energies. Between 1000 and 1050 °C the activation energy is E a1 = 160 ± 10 kJ/mol. In the 1050-1150 °C temperature range a higher value is calculated E a2 = 252 ± 20 kJ/mol. The E a2 value and the X-ray diffraction (XRD) results and scanning electron microscope (SEM) energy dispersive X-ray spectroscopy (EDS) examinations are in accordance with a scale growth mechanism limited by a growing Cr 2 O 3 scale acting as a diffusion …

Materials scienceMechanical EngineeringMetallurgyAlloyMetals and AlloysOxideAnalytical chemistrychemistry.chemical_elementGeneral MedicineActivation energyengineering.materialAtmospheric temperature rangeArrhenius plotChromiaSurfaces Coatings and Filmschemistry.chemical_compoundchemistryMechanics of MaterialsMaterials ChemistryengineeringEnvironmental ChemistryInconelTitaniumMaterials and Corrosion
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Rôle joué par les dépôts sol gel de lanthane sur l’oxydation de l’alliage 330Cb (Fe-35Ni-18Cr-1Nb-2Si) à 900 °C

2012

Cette etude a ete menee afin de tester l’influence d’un depot sol-gel de lanthane sur l’adherence des couches d’oxyde formees a 900 °C sur le 330Cb (Fe-35Ni-18Cr-1Nb-2Si). Le but de cette oxydation est de constituer une couche de chromine protectrice en vue d’ameliorer la resistance des tapis de fours vis-a-vis de la carburation. Une attention toute particuliere est portee sur le caractere protecteur du depot sol gel de lanthane en fonction de la temperature de son recuit prealable sous argon (entre 600 et 1000 °C).

General Materials ScienceMatériaux & Techniques
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