Journal
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume 6, Issue 3, Pages 194-202Publisher
SPRINGER-VERLAG
DOI: 10.1007/s100080100214
Keywords
stainless steel; corrosion inhibition; phosphonic acid; zinc; non-ionic surfactants
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A formulation consisting 100 ppm of 3-phosphonopropionic acid, 50 ppm of Zn2+ and 150 ppm of Tween 80 (polyoxyethylene sorbitan monooleate) offered 97.4% inhibition to the corrosion of 304 austenitic stainless steel immersed in a groundwater environment. This formulation functioned as a mixed inhibitor. The protective film was analysed by luminescence, XRD and FTIR spectra and pit morphology and was also observed by scanning electron microscopy.
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