Inhibition mechanism of S-containing additives towards intergranular corrosion of a sensitized stainless steel.
- A. FRIGNANI
- TASSINARI M.
- MONTICELLI C.
- TRABANELLI G.
Publication date
January 1987
DOI Publisher
Elsevier Science Limited:Oxford Fulfillment Center, PO Box 800, Kidlington Oxford OX5 1DX United Kingdom:011 44 1865 843000, 011 44 1865 843699, EMAIL: asianfo@elsevier.com, tcb@elsevier.co.UK, INTERNET: http://www.elsevier.com, http://www.elsevier.com/locate/shpsa/, Fax: 011 44 1865 843010 ISSN
0010-938XAbstract
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
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