Role of tungsten, niobium, and vanadium on corrosion resistance of austenitic stainless steels in chloride ion environment

The effect of addition of refractory elements; Tungsten, Niobium and Vanadium, on the corrosion resistance of austenitic stainless steels in chloride environment were investigated. Corrosion resistance was evaluated under conditions of immersion, potentiodynamic polarization and cyclic polarization...

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Bibliographic Details
Main Authors: Andrianingtyas, R. M., Anwar, M. S., Hastuty, S., Widharyanti, I. D., Dahliyanti, A., Prastomo, N., Mabruri, E.
Format: Conference Proceeding
Language:English
Subjects:
Austenitic stainless steel
Austenitic stainless steels
Chloride ions
Corrosion effects
Corrosion resistance
Corrosion resistant alloys
Corrosion resistant steels
Niobium
Pitting (corrosion)
Polarization
Repair & maintenance
Sodium chloride
Submerging
Tungsten
Vanadium
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Summary:The effect of addition of refractory elements; Tungsten, Niobium and Vanadium, on the corrosion resistance of austenitic stainless steels in chloride environment were investigated. Corrosion resistance was evaluated under conditions of immersion, potentiodynamic polarization and cyclic polarization vs. SCE in corrosive medium of 1.5, 2.5, and 3.5%NaCl salts. An increment of temperatures was also used; room temperature, 50 and 90 °C. The results showed that Fe-25Ni-15Cr-2W-2Nb-1V alloys have the lowest tendency of pitting corrosion to occur compared to other alloys. The increase of temperatures of these alloys demonstrated an improvement of corrosion resistance, especially for Fe-25Ni-15Cr-2W-2Nb-1V.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5038316