Abstract
The effect of triazole (TR), 3-amino-1,2,4-triaz- ole(ATA)andcetyltrimethylammoniumbromide(CTAB)on the inhibition of brass corrosion in simulated cooling water system has been studied using electrochemical measure- ments, scanning electron microscopy (SEM) observations andenergydispersiveX-ray(EDX)analysis.Thepotentiody- namic polarization study reveals that these inhibitors inhibit both cathodic and anodic reactions, indicating a mixed-type control of inhibition and their inhibition depend on the nitro- gen number in their structure. It shows that the ATA is the bestinhibitor.TheinterferencebetweenCTABandTRderiv- atives against corrosion has been also studied. So, a large passive current plate is observed directly from the corrosion potentialinthepresenceofformulation.Inaddition,theoper- ationalparameterseffectontheperformanceofthisformula- tion is also investigated. Itshows that its inhibition efficiency increases with pH, immersion time and the presence of cor- rosion products and takes its performance by increasing in temperature. The SEM/EDX data confirm that the formula- tion is a corrosion and scale inhibitor.
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