Long-term atmospheric corrosion of zinc

Fuente, Daniel de la; Castaño, Juan G.; Morcillo, M.

doi:10.1016/j.corsci.2006.08.003

Cited by 146 publications

(108 citation statements)

References 19 publications

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“…This slowing down is probably due to the formation of adherent corrosion products on the surface. The film of corrosion product becomes denser with continued exposure, thus affording a thicker, more protective coating [45]. Visual observation of exposed Zn and Cu specimens reveals that Zn changes from bright lustrous zinc to white rust, and it completely turns into rust after 12-month exposure.…”

Section: Kinetics Of Corrosion Processmentioning

confidence: 97%

Corrosion behavior of metals and alloys in marine-industrial environment

Natesan

Selvaraj

Manickam³

et al. 2008

Science and Technology of Advanced Materials

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This work deals with atmospheric corrosion to assess the degrading effects of air pollutants on ferrous and non-ferrous metals and alloys, which are mostly used as engineering materials. An exposure study was conducted in the Tuticorin port area located on the east coast of South India, in the Gulf of Mannar with Sri Lanka to the southeast. Common engineering materials, namely mild steel, galvanized iron, Zn, Al, Cu and Cu-Zn alloys (Cu-27Zn, Cu-30Zn and Cu-37Zn), were used in the investigation. The site was chosen where the metals are exposed to marine and industrial atmospheres. Seasonal 1 to 12 month corrosion losses of these metals and alloys were determined by a weight loss method. The weight losses showed strong corrosion of mild steel, galvanized iron, Cu and Zn and minor effect on Al and Cu-Zn alloys. Linear regression analysis was conducted to study the mechanism of corrosion. The composition of corrosion products formed on the metal surfaces was identified by x-ray diffraction and Fourier transform infrared spectroscopy.

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Section: Kinetics Of Corrosion Processmentioning

confidence: 97%

Corrosion behavior of metals and alloys in marine-industrial environment

Natesan

Selvaraj

Manickam³

et al. 2008

Science and Technology of Advanced Materials

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“…Mechanisms [47]. A prerequisite for atmospheric corrosion to occur is that a moisture layer be present on the zinc surface.…”

Section: Atmospheric Corrosion Of Zincmentioning

confidence: 99%

Looking Back on Contributions in the Field of Atmospheric Corrosion Offered by the MICAT Ibero-American Testing Network

Morcillo

Chico

Fuente

et al. 2012

International Journal of Corrosion

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The Ibero-American Map of Atmospheric Corrosiveness (MICAT) project was set up in 1988 sponsored by the International Ibero-American programme “Science and Technology for Development (CYTED)” and ended in 1994 after six years of activities. Fourteen countries were involved in this project: Argentina, Brazil, Chile, Colombia, Costa Rica, Cuba, Ecuador, Mexico, Panama, Peru, Portugal, Spain, Uruguay, and Venezuela. Research was conducted both at laboratories and in a network of 75 atmospheric exposure test sites throughout the Ibero-American region, thus considering a broad spectrum of climatological and pollution conditions. Although with its own peculiarities, the project basically followed the outline of the ISOCORRAG and ICP/UNECE projects, with the aim of a desirable link between the three projects. This paper summarizes the results obtained in the MICAT project for mild steel, zinc, copper, and aluminum specimens exposed for one year in different rural, urban, and marine atmospheres in the Ibero-American region. Complementary morphological and chemical studies were carried out using scanning electron microscopy (SEM) coupled with energy dispersive spectrometry (EDS), X-ray diffraction (XRD), and fourier transform infrared Spectroscopy (FTIR) techniques, in order to correlate climatic and atmospheric conditions and properties of the corrosion products.

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“…[5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] • C. Lowering the exposure temperature to −4…”

Section: Gravimetric Measurements-mentioning

confidence: 99%

“…Svensson et al 36 reported an inverse temperaturedependence for the atmospheric corrosion of Zn in the presence of traces of SO 2 in the range [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] • C, the highest corrosion rate being registered at the lowest temperature. According to Henriksen et al,37 Zn suffered corrosion in an outdoor environment (the northern parts of Norway) at temperatures well below 0…”

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confidence: 99%

“…Also, rolled Zn (<1% Cu), die-cast Zn-Al (4% Al), and brass (Cu + 20-40% Zn) have numerous applications in e.g., infrastructure and engineering sectors, [1][2][3][4] where environmental degradation is often an issue. Thus, Zn corrosion has been studied by means of atmospheric corrosion exposures in the field, [5][6][7] and in the laboratory, [8][9][10] as well as, in the presence of an aqueous media using droplets, 11,12 and bulk electrolyte exposures. 13 Various aspects of Zn corrosion have been studied in the works cited above and other reports.…”

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confidence: 99%

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Evidence for an Unusual Temperature Dependence of the Atmospheric Corrosion of Zinc

Esmaily

Mortazavi

Svensson

et al. 2016

J. Electrochem. Soc.

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The atmospheric corrosion behavior of zinc in the presence of NaCl has been investigated using well-controlled laboratory exposures in 95% RH air at ten different temperatures in the range −4 to 22 • C. Results show that a critical temperature (∼ −0.5 • C) exists in zinc corrosion above which the rate of corrosion is constant/independent of temperature, and, below which there is a positive correlation between temperature and corrosion rate. The corrosion products formed above and below −0.5 • C are also entirely different. While simonkolleite, hydrozincite and zinc carbonate hydroxide are the main corrosion products at T ≥ −0.5 • C, the same compounds are absent at T < −0.5 • C. Instead, sodium zinc carbonate (Na 2 Zn 3 (CO 3 ) 4 .3H 2 O) is the dominant corrosion product at low temperature, together with Na 2 ZnCl 4 · 3H 2 O and sweetite (Zn(OH) 2 ). The results are interpreted in terms of two distinct corrosion modes prevailing at "high" and "low" temperature, respectively.

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Long-term atmospheric corrosion of zinc

Cited by 146 publications

References 19 publications

Corrosion behavior of metals and alloys in marine-industrial environment

Corrosion behavior of metals and alloys in marine-industrial environment

Looking Back on Contributions in the Field of Atmospheric Corrosion Offered by the MICAT Ibero-American Testing Network

Evidence for an Unusual Temperature Dependence of the Atmospheric Corrosion of Zinc

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