journal article·2015-08

Influence of magnesium content on the corrosion resistance of the cut-edges of Zn–Mg-coated steel

F. Thébault, B. Vuillemin, R. Oltra, C. Allely, K. Ogle, O. Heintz

Corrosion Science· Volume 97
Publisher page

Abstract

Abstract The ability of Zn–Mg coatings (with magnesium content between 5.8 and 15.5 wt.%) to protect steel sheets has been evaluated with local electrochemical techniques (scanning vibrating electrode technique, microcapillary electrochemical cell) and rotating disk electrode, and compared with the corrosion protection afforded by a pure zinc coating. From immersion tests of coated steel cut-edges, it is observed that alloying zinc with magnesium leads to a decrease of the galvanic current between the coating and the steel surface, and to an improvement of the steel corrosion resistance after a drying period, due to the presence of magnesium in the corrosion products.
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Research context

OpenAlex topics: Corrosion Behavior and Inhibition · Non-Destructive Testing Techniques · Hydrogen embrittlement and corrosion behaviors in metals

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (25)

Show source-provided references
1. Electron beam-PVD for enhanced surface properties on metallic strips and sheets10.1016/S0257-8972(97)00515-X ↗
2. Novel coating systems based on PVD steel sheet10.1002/1522-2454(200108)13:4<233::AID-VIPR233>3.0.CO;2-B ↗
3. PVD-IBAD zinc coating development for automotive application10.1016/S0257-8972(03)00805-3 ↗
4. B. Schuhmacher, C. Schwerdt, U. Seyfert, O. Zimmer, Innovative steel strip coatings by means of PVD in a continuous pilot line: process technology and coating development, in: International Conference on Metallurgical Coatings and Thin Films, San Diego (CA-USA), 2002.10.1016/S0257-8972(02)00660-6 ↗
5. Corrosion resistance of Zn–Mg vapor deposited steel sheet
6. Corrosion resistance of zinc–magnesium coated steel10.1016/j.corsci.2007.03.032 ↗
7. Properties and potential applications of novel ZnMg alloy coatings on steel sheet
8. Composition of corrosion products formed on Zn–Mg, Zn–Al and Zn–Al–Mg coatings in model atmospheric conditions10.1016/j.corsci.2014.05.016 ↗
9. On the effects of magnesium on the atmospheric corrosion resistance of galvanized sheet steel10.5006/1.3583930 ↗
10. Corrosion mechanism of model zinc magnesium alloys in atmospheric conditions10.1016/j.corsci.2008.06.008 ↗
11. Understanding corrosion via corrosion product characterization: I. Case study of the role of Mg alloying in Zn–Mg coating on steel10.1016/j.corsci.2009.03.005 ↗
12. R. Hausbrand, M. Rohwerder, M. Stratmann, C. Schwerdt, B. Schuhmacher, G. Grundmeier, Model study on the corrosion of magnesium containing zinc coatings on steel sheet, in: 5th International Conference on Zinc and Zinc Alloy Coated Steel Sheet Galvatech’2001, 2001, pp. 161.
13. Self-healing ability of zinc-plated steel coated with magnesium electrodeposited from a molten salt10.2320/matertrans1989.38.719 ↗
14. Investigations of self-healing mechanism on galvanized steels cut-edges by coupling SVET and numerical modeling10.1016/j.electacta.2008.02.066 ↗
15. Protective mechanisms occurring on zinc coated steel cut-edges in immersion conditions10.1016/j.electacta.2011.07.016 ↗
16. Cathodic self-healing at cut-edges: the effect of Zn2+ and Mg2+ ions10.1016/j.corsci.2012.08.008 ↗
17. Modeling bimetallic corrosion under thin electrolyte films10.1016/j.corsci.2010.09.010 ↗
18. Localized electrochemical methods applied to cut edge corrosion10.1149/1.1393954 ↗
19. 1995
20. Cut-edge corrosion of a Zn–55Al-coated steel: a comparison between sulphate and chloride solutions10.1016/j.corsci.2011.05.048 ↗
21. In situ investigation of sacrificial behaviour of hot dipped AlSi coating in sulphate and chloride solutions10.1016/j.corsci.2013.01.018 ↗
22. Observation of self-healing functions on the cut edge of galvanized steel using SVET and pH microscopy10.1149/1.2126577 ↗
23. Effect of the surrounding aeration on microcapillary electrochemical cell experiments10.1016/j.elecom.2008.03.014 ↗
24. The coprecipitation of zinc aluminium hydroxide powders from aqueous solution with sodium hydroxide: precipitate compositions and coprecipitation mechanisms10.1002/crat.2170211008 ↗
25. Available from: http://www.kemi.kth.se/medusa/.