Corrosion Inhibition of Two Brass Alloys by Octadecanethiol in Humidified Air with Formic Acid
2015 (English)In: Corrosion, ISSN 0010-9312, E-ISSN 1938-159X, Vol. 71, no 7, 908-917 p.Article in journal (Refereed) Published
Self-assembled monolayers of octadecanethiol (ODT) have previously shown to provide excellent corrosion inhibition on copper exposed to humidified air containing formic acid, mimicking indoor atmospheric corrosion. ODT layers are, however, much less efficient corrosion inhibitors for zinc. In this work, we elucidate the possibility of using ODT monolayers to inhibit corrosion of brass. Based on a quantitative analysis of corrosion products, we found that ODT provides equally good corrosion inhibition of single-phase Cu20Zn as of pure copper, retarding the transportation of corrosion stimulators to the brass surface. On double-phase Cu40Zn, however, local galvanic effects led to less efficient corrosion inhibition and more corrosion products than on Cu20Zn.
Place, publisher, year, edition, pages
2015. Vol. 71, no 7, 908-917 p.
atmospheric environments, atomic force microscopy, copper, corrosion inhibitor, interfacial effects, self-assembled, zinc
IdentifiersURN: urn:nbn:se:kth:diva-172494DOI: 10.5006/1648ISI: 000357516900010ScopusID: 2-s2.0-84936945455OAI: oai:DiVA.org:kth-172494DiVA: diva2:848614
QC 201508252015-08-252015-08-252015-08-25Bibliographically approved