The comparison of the polarization curves recorded on pure Fe, Cr, Ni, and Fe-18Cr-8Ni, Fe-8Cr-8Ni and Fe-10Ni, Fe-17Cr alloys in 1 N H2SO4 at 70 °C clarifies the inhibition mechanism of intergranular corrosion on sensitized AISI 304 SS by S-containing additives. These additives stimulate the anodic dissolution process of Fe-18Cr-8Ni alloy and inhibit this process on Fe-8Cr-8Ni alloy. The anodic behaviour of Fe-18Cr-8Ni is similar to that of pure chromium, while the behaviour of Fe-8Cr-8Ni is similar to that of pure iron.
Inhibition mechanism of S-containing additives towards intergranular corrosion of a sensitized stainless steel
FRIGNANI, Alessandro;MONTICELLI, Cecilia;TRABANELLI, Giordano
1987
Abstract
The comparison of the polarization curves recorded on pure Fe, Cr, Ni, and Fe-18Cr-8Ni, Fe-8Cr-8Ni and Fe-10Ni, Fe-17Cr alloys in 1 N H2SO4 at 70 °C clarifies the inhibition mechanism of intergranular corrosion on sensitized AISI 304 SS by S-containing additives. These additives stimulate the anodic dissolution process of Fe-18Cr-8Ni alloy and inhibit this process on Fe-8Cr-8Ni alloy. The anodic behaviour of Fe-18Cr-8Ni is similar to that of pure chromium, while the behaviour of Fe-8Cr-8Ni is similar to that of pure iron.File in questo prodotto:
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