Atmospheric Corrosion Rates of Copper, Galvanized Steel, Carbon Steel and Aluminum in the Metropolitan Region of Salvador, BA, Northeast Brazil

Portella, M.O.G.; Portella, Kleber Franke; Pereira, P.A.M.; Inone, P.C.; Brambilla, K.J.C.; Cabussú, Mário Seixas; Cerqueira, Dailton Pedreira; Salles, R.N.

doi:10.1016/j.proeng.2012.07.408

Cited by 23 publications

(12 citation statements)

References 8 publications

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“…Scientific literature on the atmospheric corrosion of copper is highly abundant [6,[10][11][12] as is published information on the mechanisms by which copper patinas form in atmospheres polluted with SO 2 and other atmospheric compounds [6,[13][14][15][16][17]. However, data on the corrosion of copper in chloride-rich atmospheres is less abundant [6,[18][19][20][21][22][23][24][25][26][27][28][29] and only a very small number of studies consider in depth the effect of marine aerosol (sea-chloride deposition) in pure marine atmospheres without SO 2 pollution [26][27][28][29]. The present paper seeks to address this deficit by considering six pure marine atmospheres located at different distances from the seashore in the same coastal area.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of Copper in Unpolluted Chloride-Rich Atmospheres

Lopesino¹,

Alcántara²,

Fuente³

et al. 2018

Metals

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The atmospheric corrosion of copper in pure coastal atmospheres has not been extensively studied. This paper presents the results of research carried out in pure coastal atmospheres with annual chloride deposition rates of between 110–1640 mg/m2·d. Copper specimens (99.99 wt % Cu) were exposed for 3, 6, 9, and 12 months at six testing stations located at different distances from the seashore. Tests were performed to determine the copper corrosion rate, the surface area coated with corrosion products, and the evolution of both magnitudes with exposure time. Conventional and grazing X-ray diffraction techniques were used to analyze the corrosion products formed—cuprite and the polymorphs botallackite, atacamite, and clinoatacamite—and their presence through the patina thickness, while scanning electron microscopy/energy dispersive X-ray spectrometry was employed to study the morphology of the resulting corrosion layers. The most relevant findings are a notable increase in atacamite and clinoatacamite formation at higher atmospheric salinity levels and longer exposure times, and the flaking-off of the corrosion product layer formed in the marine atmospheres with the highest chloride deposition rates.

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Section: Introductionmentioning

confidence: 99%

Corrosion of Copper in Unpolluted Chloride-Rich Atmospheres

Lopesino¹,

Alcántara²,

Fuente³

et al. 2018

Metals

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“…where A f is the dimensionless corrosion rate correction factor, V is the velocity of the corrosive fluid (m/s), W L is the weight loss of the specie (kg), t is the exposure time (yrs), A is the area of species in contact with the corrosive fluid (m 2 ), ρ o is the density of the specie (kg•m -3 ), and μ is the viscosity of the corrosive fluid (Ns/m 2 ). Portella et al [56] worked on atmospheric aerosols' impact on the corrosion rate of metallic surfaces. The experiment was carried out under local climatic conditions.…”

Section: The Need To Review the Atmospheric Corrosion Rate Modelmentioning

confidence: 99%

Role of Atmospheric Aerosol Content on Atmospheric Corrosion of Metallic Materials

Emetere

Afolalu

Amusan

et al. 2021

International Journal of Corrosion

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Despite extensive work on improving atmospheric corrosion resistance in metals, i.e., steel and alloy, the corrosion rate on the metallic surface is higher at some localized geographical area of the globe. Despite the visible successes in recent coating technology in curbing environmental conditions, it is proposed that the recent increase of atmospheric bioaerosols has a significant role in the dissolution of corrosion-resistant coating over a metallic surface. In this review, the science of atmospheric corrosion on metallic materials was reviewed in the light of the chemical and physical composition of atmospheric bioaerosols and aerosols. It was observed that aside from general conditions (i.e., alloying element level, surface roughness, surface treatment, and microclimate), the bioaerosols content is essential for future research in corrosion. It is recommended that further experimental research be carried out to corroborate the science of atmospheric bioaerosols to different forms of corrosion.

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“…Thus, a highly accurate in situ method for monitoring atmospheric corrosion remains necessary. The strain-measurement circuit using the active dummy method for an atmospheric corrosion sensor based on strain measurement (ACSSM) with strain gauges accommodated such temperature drifts and showed good performance in the situ monitoring of specimen thinning under corrosion, as measured by galvanostatic electrolysis [32][33][34]. However, for actual applications, experiments with dry-wet method [35][36][37][38] to investigate the performance of the corrosion product/rust under strain behavior.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Corrosion Sensor Based on Strain Measurement with an Active Dummy Circuit Method in Experiment with Corrosion Products

Purwasih

Kasai

Okazaki

et al. 2019

Metals

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This study analyzed an atmospheric corrosion sensor using strain measurements (ACSSM) with an active dummy method for corrosion product experiments. An initial compensation thermal strain experiment was performed with elapsed time. Further analyses used dry-wet environments with salt water spray to investigate the thickness reduction performance of the corrosion product on low-carbon steel samples. The ACSSM with an active dummy method accurately measured signals induced by the specimen thickness reduction, despite the noise in the signal. Moreover, the effects of corrosion products on the signal were discussed.

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Atmospheric Corrosion Rates of Copper, Galvanized Steel, Carbon Steel and Aluminum in the Metropolitan Region of Salvador, BA, Northeast Brazil

Cited by 23 publications

References 8 publications

Corrosion of Copper in Unpolluted Chloride-Rich Atmospheres

Corrosion of Copper in Unpolluted Chloride-Rich Atmospheres

Role of Atmospheric Aerosol Content on Atmospheric Corrosion of Metallic Materials

Atmospheric Corrosion Sensor Based on Strain Measurement with an Active Dummy Circuit Method in Experiment with Corrosion Products

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