0000000000608660
AUTHOR
W. Kai
showing 2 related works from this author
High Temperature Sulfidation of Al-and Mo-Modified 310 Stainless Steel
1997
Le comportement a la sulfuration d'aciers inoxydables 310 modifies (avec differentes quantites de Mo et Al jusqu'a 10 at%) a ete etudie entre 700-900°C sous pressions de soufre egales a 0.01 et 0.1 atm. La cinetique de corrosion de l'acier suit la loi parabolique et diminue quand la quantite de Mo et Al augmente. Les couches formees sur les aciers sont complexes et constituees de deux sous-couches. La couche externe est composee de sulfure de fer (avec du chrome dissous), de (Fe , Ni) 9 S 8 et de sulfures de chromes (Cr 2 S 3 /Cr 3 S 4 avec du fer dissous), tandis que la couche interne est un melange de plusieurs phases: Cr 2 S 3 /Cr 3 S 4 , Fe 1.25 Mo 6 S 77 , MOS 2 , Al 0.55 Mo 2 S 4 et F…
Electrochemical Impedance Spectroscopy Study of the Behaviour of Lanthanide-Rich Films Formed on Aluminium-Magnesium Alloys
1998
The film covering formed on AA5083 aluminium-magnesium alloy by immersion treatments in solutions containing CeCl 3 has been characterized by means of electrochemical techniques. The measurement of linear polarization has enabled to establish that the treatments applied provide efficient protection against both uniform and pitting corrosion of alloy AA5083, used in shipbuilding, in solutions of NaCl. This study has been focused on the use of Electrochemical Impedance Spectroscopy as a characterization technique for these film coverings.