Removal of Corrosion Products from Iron

Finnegan, T. J.; Corey, R. C.

doi:10.1021/ac50082a007

Cited by 4 publications

(6 citation statements)

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“…Each specimen was immersed in a 60 ml solution and taken out after 24, 72, 120 and 168 hours. The corrosion product on the surface was removed by gentle brushing in 15% H 2 SO 4 solution [13], cleaned and dried before being weighed. The corrosion rate (CR) was calculated based on the weight loss of specimens according to the standard ASTM G59:…”

Section: Methodsmentioning

confidence: 99%

DEGRADATION BEHAVIOR OF A BIODEGRADABLE Fe-Mn ALLOY PRODUCED BY POWDER SINTERING

Zhang

Wang

Cao

et al. 2012

Int. J. Mod. Phys. Conf. Ser.

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Biodegradable stenting and implantation materials have received considerable attention in biomaterials community, with magnesium having been received most wide attention. However, magnesium corrodes too fast by nature, in human body environment. A new type of biodegradable metal -Fe and its alloys -has been introduced in recent years. In this study, a Fe35wt%Mn alloy was produced using powder sintering. Powder mixture was mechanically milled, pressed and then sintered to consolidate powder compacts. Microstructure characterization and hardness measurement were carried out on the as-sintered samples. In vitro degradability evaluation of the samples was performed in 5% NaCl and Simulated Body Fluid (SBF) media. The experimental results show that a higher porosity results in a higher degradation rate. All samples, with porosity being from 6.5% to 12.2 %, revealed a degradation rate from 0.6 to 1.4 mm/year.

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Section: Methodsmentioning

confidence: 99%

DEGRADATION BEHAVIOR OF A BIODEGRADABLE Fe-Mn ALLOY PRODUCED BY POWDER SINTERING

Zhang

Wang

Cao

et al. 2012

Int. J. Mod. Phys. Conf. Ser.

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show abstract

“…The morphology and composition of each product were analyzed using a field emission scanning electron microscope (FESEM), energy-dispersive X-ray spectroscopy (EDAX) and X-ray photoelectron spectroscopy (XPS) analyses. To observe the corrosion morphology under the corrosion products, the corrosion products were removed using the chemical product clean-up method described by Finnegan (Finnegan and Corey, 1933).…”

Section: Surface Morphology Observation and Corrosion Product Analysismentioning

confidence: 99%

Corrosion behaviour of X52 steel in the presence of sulphite

Fatah

Ismail

Ariwahjoedi

2014

Anti-Corrosion Methods and Materials

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Purpose – The purpose of this work was to study the corrosion behaviour of X52 steel in the presence of sulphite. Design/methodology/approach – The study was conducted in abiotic solutions containing species typical of sulphate-reducing bacteria (SRB) metabolism. Electrochemical techniques, i.e. linear polarization resistance (LPR), potentiodynamic and electrochemical impedance spectroscopy (EIS), were used to observe the corrosion kinetics and mechanism of X52 steel in the solution containing sulphite. Field emission scanning electron microscope (FESEM) and X-ray photoelectron spectroscopy (XPS) were used to characterize the corrosion products. Findings – LPR and EIS results showed that the addition of sulphite ions to the abiotic solutions increased the rate of X52 steel corrosion. The increase of corrosion rate was due to the increase in the cathodic reaction in the presence of sulphite. It was also observed that sulphite thinned the protective FeS film and caused corrosive species to adsorb on the surface, resulting in an increase in corrosion rate. Originality/value – This paper discusses the effects of sulphite on the corrosion behaviour of X52 steel in abiotic solution containing species typically produced by the SRB-type metabolic process. Irrespective of the presence of sulphide, sulphite is produced by SRB during their metabolic process. However, as far as is known, no published papers are available that discuss the effect of the presence of sulphite as one of the metabolic products of SRB.

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“…To observe the corrosion morphology under the corrosion products, the corrosion products were removed using the chemical product cleanup method as mentioned by Finnegan and Corey. 16 …”

Section: Surface Morphology Observation and Corrosion Product Analysismentioning

confidence: 99%

Effects of sulphide ion on corrosion behaviour of X52 steel in simulated solution containing metabolic products species: a study pertaining to microbiologically influenced corrosion (MIC)

Fatah

Ismail

Wahjoedi

2013

Corrosion Engineering, Science and Technology

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The objective of this work is to study the effect of sulphide ion on the corrosion behaviour of X52 steel in the simulated solution containing sulphate reducing bacteria metabolic products species. Linear polarisation resistance and electrochemical impedance spectroscopy results show that the addition of 50 ppm sulphide ions increased the rate of X52 steel corrosion. However, with addition of 200 and 400 ppm sulphide, the corrosion rate decreased. The increase in corrosion rate is due to the increase in the cathodic reaction in the presence of sulphide, while the corrosion protection was related to FeS film formed, typically mackinawite and pyrite.

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Removal of Corrosion Products from Iron

Cited by 4 publications

References 0 publications

DEGRADATION BEHAVIOR OF A BIODEGRADABLE Fe-Mn ALLOY PRODUCED BY POWDER SINTERING

DEGRADATION BEHAVIOR OF A BIODEGRADABLE Fe-Mn ALLOY PRODUCED BY POWDER SINTERING

Corrosion behaviour of X52 steel in the presence of sulphite

Effects of sulphide ion on corrosion behaviour of X52 steel in simulated solution containing metabolic products species: a study pertaining to microbiologically influenced corrosion (MIC)

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