The Effect of Thermal Preoxidation on the Pitting Susceptibility of Steel X18 H10T
T. Yu. Zimina, O. G. Tselykh, and E. K. Oshe
Institute of Physical Chemistry, Russian Academy of Sciences,
Leninskii pr. 31, Moscow, 119991 Russia
e-mail: Этот e-mail защищен от спам-ботов. Для его просмотра в вашем браузере должна быть включена поддержка Java-script
Received August 27, 2003
Abstract — The effect of thermal preoxidation of a 
18
10
stainless steel in air at temperatures of 100 to 775°C on its susceptibility to pitting is studied. It is shown that the pitting potential of steel depends on the number of defects in the preformed surface thermooxides. Oxidation at 100–300°C forming rhombohedral oxides of 
-(Fe,Cr)2O3 type with a small deviation from stoichiometry decreases the pitting susceptibility. Oxidation at higher temperature impairs the corrosion resistance of steel.
1810 stainless steel in air at temperatures of 100 to 775°C on its susceptibility to pitting is studied. It is shown that the pitting potential of steel depends on the number of defects in the preformed surface thermooxides. Oxidation at 100–300°C forming rhombohedral oxides of -(Fe,Cr)2O3 type with a small deviation from stoichiometry decreases the pitting susceptibility. Oxidation at higher temperature impairs the corrosion resistance of steel.