Original scientific paper

Behaviour of AISI 316L Steel Exposed to Demineralized Water

M. Gojić ; Faculty of Metallurgy, Sisak, Croatia
D. Marijan ; PLIVA Croatia, Ltd, Zagreb, Croatia
S. Kožuh ; Faculty of Metallurgy, Sisak, Croatia
T. Sorić ; INA d. d., Zagreb, Croatia

Abstract

The subject of investigation was the passivation of AISI 316L austenitic stainless steel. The effectiveness of various passivation media was tested by means of the potentiodynamic polarization technique. Potentiodynamic polarization was carried out in demineralized water before and after passivation treatment. Comparative analysis of the potentiodynamic curves for different passivation media showed that the best protection of the steel surface was provided by a HNO₃ solution, φ= 6.0 %, containing CuSO₄ · 5H₂O, w = 2.0 %. The satisfactory protective properties were found to agree with the high value of the pitting potential.

Keywords

Stainless steel; passivation; pitting corrosion; inhibitors

Hrčak ID:

37451

URI

https://hrcak.srce.hr/37451

Publication date:

2.6.2009.

Article data in other languages: croatian

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