Abstract
The effect of sodium molybdate in inhibiting galvanic corrosion of Zn coating and mild steel is addressed. The inhibitor's performance was appraised by Zero Resistance Ammeter on HDG/mild steel galvanic coupling model in 0.05 M NaCl (+5 mM Na2MoO4) media. The effectiveness of Na2MoO4 was evaluated on HDG substrate mechanically scratched to reach the steel. Scanning Vibrating Electrode Technique was employed for assessing the distribution of j from scribed HDG surfaces. This local electrochemistry approach was repeated in NaCl solution to examine the behaviour of HDG when the Zn-coating is partially removed. Surface analysis supported all electrochemical results.
Original language | English |
---|---|
Article number | 108893 |
Number of pages | 16 |
Journal | Corrosion Science |
Volume | 175 |
DOIs | |
Publication status | Published - 2020 |
Bibliographical note
Accepted Author ManuscriptKeywords
- A. Mild steel
- A. Zinc
- C. Cathodic protection
- C. Interfaces
- C. Neutral inhibition