Self-repairing oxides to protect zinc: Review, discussion and prospects

Autor:	Ivan S. Cole, Nick Birbilis, Sebastian Thomas, Murali Sankar Venkatraman
Rok vydání:	2013
Předmět:	Materials science Aqueous solution Chromate conversion coating General Chemical Engineering Metallurgy chemistry.chemical_element General Chemistry Zinc Corrosion Metal chemistry visual_art Self repairing visual_art.visual_art_medium General Materials Science Surface layer
Zdroj:	Corrosion Science. 69:11-22
ISSN:	0010-938X
DOI:	10.1016/j.corsci.2013.01.011
Popis:	Zinc is protected in the short term by chromate conversion coatings. The Cr (VI) based surface layer has the unique ability to self-repair which is attributable to the aqueous properties of its constituent ions. The thermodynamic feasibility of achieving chromium-like protection for the short term using other candidates is reviewed. Long-term protection of zinc is naturally affected by its own corrosion products (patina), which form a multilayered structure. The role of this patina in protecting the underlying metal is also reviewed, and processes within the patina, including the interaction between its various layers, are elaborated and discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::677b8c6b61ec7377599543c456a2ab7d https://doi.org/10.1016/j.corsci.2013.01.011 Zobrazit plný text záznamu Full Text from ScienceDirect