Study on corrosion behavior of zinc exposed in coastal-industrial atmospheric environment

Liu, Y.W.; Wang, Z.Y.; Cao, Guikang; Cao, Yang; Huo, Yujing

doi:10.1016/j.matchemphys.2017.05.043

Cited by 32 publications

(16 citation statements)

References 35 publications

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“…Some authors assign the high‐frequency time constant to the faradic process described by a charge transfer resistance and a double layer capacitance (sometimes substituted by a constant phase element [CPE]), while the middle‐frequency time constant to the contribution of the corrosion product layer. However, other authors suggest the opposite.…”

Section: Resultsmentioning

confidence: 94%

“…According to the literature, the regressed parameters of CPEs used to fit impedance measurements exhibiting frequency dispersion do not necessarily have a clear physical meaning, even if a good fit can be obtained. In fact, the CPE is associated with a distribution of time constants on the electrode surface and has been attributed to the presence of surface heterogeneity, roughness, or to a distribution of time constants for charge‐transfer reactions . In fact, when the exponent of the CPE is between 0.5 and 1, its real physical meaning is controversial and object of debate .…”

Section: Resultsmentioning

confidence: 99%

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Sebacic acid as corrosion inhibitor for hot‐dip galvanized (HDG) steel in 0.1 M NaCl

Fedel

Poelman

Olivier

et al. 2019

Surface & Interface Analysis

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The potential of sebacic acid as a corrosion inhibitor for hot-dip galvanized steel in 0.1 M NaCl solution has been investigated. Different concentrations of the organic acid have been tested in order to understand the inhibition mechanism of the compound. The electrochemical test revealed a competitive mechanism between the dissolution of the metal in the acidified solution and the inhibition provided by the dicarboxylic species. The formation of a whitish layer consisting of zinc carboxylates and corrosion products was proved by means of scanning electron microscopy (SEM) investigation combined with Fourier transform infrared (FT-IR) analysis. A bidentate bridging coordination between the Zn(II) and the carboxylic species is suggested.

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Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Sebacic acid as corrosion inhibitor for hot‐dip galvanized (HDG) steel in 0.1 M NaCl

Fedel

Poelman

Olivier

et al. 2019

Surface & Interface Analysis

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show abstract

“…They observed a decrease in corrosion rate with time which they associated with the protective properties of simonkolleite. Liu et al [ 19 ] exposed zinc in a Chinese industrial marine site and noted that the corrosion rate decreased and the polarization resistance increased with time. The noted that, initially, the rust layer consisted of zinc hydroxyl carbonates while sodium zinc chlorohydroxy-sulfate and Zn 2 (OH) 15 Cl 3 (SO4) 3 ·5H 2 O compact layers developed with longer exposures.…”

Section: Oxide Formationmentioning

confidence: 99%

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

Cole

2017

Materials

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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.

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“…Its ability to naturally create a patina layer (complex compound mainly containing zinc hydroxycardonates), protecting it from external elements [ 1 ] and avoiding the formation of corrosion products, is one of its main advantages. However, for some applications, it is still necessary to provide a protective layer to further improve its resistance to corrosion.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc

Savignac¹,

Gressier

et al. 2018

Molecules

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Corrosion is a major problem for durability of many metals and alloys. Among the efficient classical surface treatments, chromate-based treatments must be banished from industrial use due to their toxicity. At the same time, sol-gel routes have demonstrated high potential to develop an efficient barrier effect against aggressive environments. By this process, the anti-corrosion property can be also associated to others in the case of the development of multi-functional hybrid coatings. In this paper, the main goal is precisely to improve both the corrosion resistance and the adhesion properties of phosphated zinc substrates by the deposition of a hybrid (organic-inorganic) sol-gel layer. To reach this double objective, a choice between two formulations 3-glycidoxypropyltrimethoxysilane (GPTMS)/aluminum-tri-sec-butoxide (ASB) and 3-(trimethoxysilyl)propylmethacrylate (MAP)/tetraethylorthosilicate (TEOS) was firstly made based on the results obtained by microstructural characterizations using SEM, optical analysis, and mechanical characterization such as shock and/or scratch tests (coupled to climatic chamber and salt spray exposure). Several investigations were performed in this study, and the best formulation and performances of the system were obtained by adding a new precursor (1-[3-(trimethoxysilyl)propyl]ureido-UPS) under controlled conditions, as detailed in this paper.

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Study on corrosion behavior of zinc exposed in coastal-industrial atmospheric environment

Cited by 32 publications

References 35 publications

Sebacic acid as corrosion inhibitor for hot‐dip galvanized (HDG) steel in 0.1 M NaCl

Sebacic acid as corrosion inhibitor for hot‐dip galvanized (HDG) steel in 0.1 M NaCl

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

Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc

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