Abstract
Transition from passivation to erosion-corrosion at the critical flow velocity (CFV) is of interest for corrosion engineers. This transition phenomenon on 304 stainless steel and a Fe-based amorphous coating was investigated under impingement by sand-containing NaCl solution. Mass loss measurement, open-circuit potential monitoring and potentiostatic test were employed to determine the CFV. The CFV values defined via the three approaches are consistent, about 10. m/s for 304 stainless steel and 15. m/s for the coating. The CFV decreases with increasing the sand concentration. It may serve as an effective tool for evaluating the erosion-corrosion resistance of passive materials.
Original language | English (US) |
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Pages (from-to) | 187-196 |
Number of pages | 10 |
Journal | Corrosion Science |
Volume | 88 |
DOIs | |
State | Published - Nov 2014 |
Keywords
- A. Metal coatings
- A. Stainless steel
- B. Erosion
- B. Potentiostatic
- C. Passivity
ASJC Scopus subject areas
- Materials Science(all)
- Chemical Engineering(all)
- Chemistry(all)