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Materials 2017, 10(11), 1288; https://doi.org/10.3390/ma10111288

Recent Progress and Required Developments in Atmospheric Corrosion of Galvanised Steel and Zinc

School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
Received: 16 October 2017 / Revised: 5 November 2017 / Accepted: 9 November 2017 / Published: 9 November 2017
(This article belongs to the Special Issue Fundamental and Research Frontier of Atmospheric Corrosion)
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Abstract

This paper reviews the progress in atmospheric corrosion of zinc since 2009. It firstly summarises the state of the art in 2009, then outlines progress since 2009, and then looks at the significance of this progress and the areas the need more research. Within this framework, it looks at climate effects, oxide formation, oxide properties, pitting, laboratory duplication of atmospheric corrosion, and modelling. The major findings are that there have been major advances in the fields understanding of the structure of corrosion patina, in particular their layered structure and the presence of compact layers, local corrosion attacks have been found to be a significant process in atmospheric corrosion and experiments under droplets are leading to new understanding of the criticality of drop size in regulating atmospheric corrosion processes. Further research is indicating that zinc oxide within corrosion products may promote the oxygen reduction reaction (ORR) and that, in porous oxides, the ORR would control pore chemistry and may promote oxide densification. There is a strong need for more research to understand more deeply the formation and properties of these layered oxides as well as additional research to refine and quantify our emerging understanding of corrosion under droplets. View Full-Text
Keywords: zinc; corrosion; oxides; droplets zinc; corrosion; oxides; droplets
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Cole, I.S. Recent Progress and Required Developments in Atmospheric Corrosion of Galvanised Steel and Zinc. Materials 2017, 10, 1288.

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