Effect of MnO-4 Anion Inhibition on Corrosion of (70%Cu-30%Zn) Brass in Salt and Basic Solutions
This research involves study effect of MnO-4 anion addition as inhibitor on the polarization behavior of (70%Cu-30%Zn) alloy in salt and basic medium ( 0.6 M NaCl & 0.6 M NaOH) by potentiostatic method where Tafel slopes and corrosion rate (Rmpy) and inhibition efficiency (El%) for each salt and...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2011-12-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_33260_990989243a3acca0c81058767aeb2c08.pdf |
| Summary: | This research involves study effect of MnO-4 anion addition as inhibitor on the polarization behavior of (70%Cu-30%Zn) alloy in salt and basic medium ( 0.6 M NaCl & 0.6 M NaOH) by potentiostatic method where Tafel slopes and corrosion rate (Rmpy) and inhibition efficiency (El%) for each salt and basic environments were measured .Result of the tests shows that the values of Tafel slopes and corrosion rate decreases with adding the MnO-4 anion in two solutions, the Inhibition efficiency of 70%Cu-Zn30% alloy in NaOH solution more than that observed in NaCl solution. which means that the basic media is more corrosive Cu-Zn alloy even after the addition of inhibitor. |
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| ISSN: | 1681-6900 2412-0758 |