The polarization behavior of mild steel in ethanol/water/sulfuric acid system

Kabasakaloğlu, M.; Kalyoncu, İkram; Kiyak, Tülin

doi:10.1016/s0169-4332(98)00288-8

Cited by 9 publications

(9 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The polarization experiments were performed in a solution simulating the aggressive solution in which the final product could be used. 13 The polarization curves of the ferrite and austenite materials are shown in Fig. 7, together with that of a mild steel sample, shown for comparison.…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

Corrosion of an austenite and ferrite stainless steel weld

Rajaković-Ognjanović¹,

Grgur²

2011

JSCS

View full text Add to dashboard Cite

Dissimilar metal connections are prone to frequent failures. These failures are attributed to the difference in the mechanical properties across the weld, the coefficients of thermal expansion of the two types of steels and the resulting creep at the interface. For the weld analyzed in this research, it was shown that corrosion measurements can be used for a proper evaluation of the quality of weld material and for the prediction of whether or not the material, after the applied welding process, can be in service without failures. It was found that the corrosion of the weld analyzed in this research resulted from the simultaneous activity of different types of corrosion. In this study, electrochemical techniques including polarization and metallographic analysis were used to analyze the corrosion of a weld material of ferrite and austenitic stainless steels. Based on surface, chemical and electrochemical analyses, it was concluded that corrosion occurrence was the result of the simultaneous activity of contact corrosion (ferrite and austenitic material conjuction), stress corrosion (originating from deformed ferrite structure) and inter-granular corrosion (due to chromium carbide precipitation). The value of corrosion potential of -0.53 V shows that this weld, after the thermal treatment, is not able to repassivate a protective oxide film.

show abstract

Section: Electrochemical Measurementsmentioning

confidence: 99%

Corrosion of an austenite and ferrite stainless steel weld

Rajaković-Ognjanović¹,

Grgur²

2011

JSCS

View full text Add to dashboard Cite

show abstract

“…The corrosion aggressiveness of nonaqueous environments and the resistance of metallic materials have been studied and evaluated in many publications. − Electrochemical methods such as corrosion potential measurements, cyclic potentiodynamic polarization, and impedance spectroscopy in two- or three-electrode arrangements have mostly been used for such studies. − …”

Section: Introductionmentioning

confidence: 99%

Study of Corrosion Effects of Oxidized Ethanol–Gasoline Blends on Metallic Materials

et al. 2018

View full text Add to dashboard Cite

Bioethanol added into gasolines significantly changes the physical and chemical properties of the resulting fuels and can have a considerable influence on their overall thermo-oxidative stability. During fuel oxidation, different oxidation products such as water, acidic substances, and peroxides are formed and these can have corrosive effects on metallic construction materials of the storage and transportation equipment, engines, and fuel lines of automobiles, etc. In this work, we tested the laboratory prepared ethanol−gasoline blends (EGBs) E10, E25, E40, E60, and E85, which were artificially oxidized depending on their induction period. The oxidized fuels were used to study their corrosion aggressiveness after their thermal load in the presence of oxygen or after the expiry of their shelf life. The corrosion properties of these fuels were tested on steel, copper, aluminum, and brass using electrochemical methods such as electrochemical impedance spectroscopy and Tafel curve analysis. For comparison, static immersion tests on copper and brass were performed. The main parameters for the comparison of the corrosive effects were the instantaneous corrosion rate, the polarization resistance, and the corrosion rates of copper and brass, which were obtained from the weight losses which occurred during the static tests. The highest corrosion aggressiveness was observed, in most cases, for the oxidized E60 fuel; in this environment, the lowest resistance was observed for brass, at a peroxide content of 250 mg•kg −1 already.

show abstract

“…Hygroscopicity of gasoline, ethanol and E10 [24] Combustible Contenido en agua antes Contenido en agua (vol. %) después de 30 de la exposición (vol. %) 30 días a 20 ºC y 100 % de humedad relativa …”

Section: Efecto Del Contenido De Etanolunclassified

“…[27] . Kabasakaloglu et al [30] , obtuvieron curvas de polarización anódica con mezclas etanol-agua en un medio al que se añadió H 2 SO 4 0,1M observando que, cuando el contenido de agua aumentaba, los valores de las densidades de corrientes anódicas eran más elevadas. También comprobaron que en una solución de etanol puro, la curva no tiene picos de pasivación.…”

Section: Efecto Del Contenido En Aguaunclassified

“…Mediante la obtención de curvas de polarización potenciodinámicas, concluyeron que los cloruros aumentaban la velocidad de corrosión en ambos materiales, especialmente para concentraciones comprendidas entre 1,10 -2 M y 1,10 -3 M. Kabasakaloglu et al [30] , estudiaron el comportamiento de un acero al carbono, variando la [25] . [25] .…”

Section: Efecto De La Variación Del Contenido En áCidosunclassified

See 1 more Smart Citation

Revisión y estado del arte de la corrosividad del etanol y sus mezclas con gasolina

Berlanga¹,

Biezma²,

Fernández³

2011

REVMETAL

View full text Add to dashboard Cite

resumenActualmente, el etanol se presenta como una fuente importante de combustible renovable para el sector de la automoción. Se sabe que los carburantes tradicionales, como la gasolina, no han causado problemas de corrosión, debido principalmente a su baja miscibilidad en el agua. En cambio, los biocarburantes en base alcohol pueden contener una considerable cantidad de agua y, además, se puede producir la oxidación parcial de sus componentes por su exposición a la atmósfera. Estas reacciones pueden ocasionar corrosión y posterior fallo, de cualquier componente metá-lico en contacto con las mezclas etanol-gasolina. En consecuencia, todos los sectores relacionados con la industria que emplean este combustible, empresas productoras, logística, dispensadores y fabricantes de vehículos, pueden estar afectados por esta problemática. Esto hace que este tema sea muy interesante, tanto desde un punto de vista científico como industrial. En este trabajo se revisa sistemáticamente todos los aspectos relacionados con la corrosión que produce el etanol y sus mezclas con gasolina, con el objetivo de conocer en profundidad el estado actual de las investigaciones, así como para orientar trabajos futuros que estén afectados, tanto de forma directa o indirecta con esta temática. Palabras claveEtanol; Corrosión electroquímica; Corrosión bajo tensión; Inhibidores. review and state-of-the-art of the corrosivity produced by ethanol and their mixtures with gasoline AbstractEthanol is currently an important source of renewable combustible for the automotive sector. It is known that traditional fuels such as gasoline have not caused corrosion problems due mainly to low miscibility with water. On the other hand, the alcohol based biofuels can contain a considerable amount of water, and in addition, partial oxidation of their components might be produced by exposition to the atmosphere, and this may lead to corrosion and subsequent failure of any metallic component in contact with the ethanol-gasoline blends. In consequence, all the industrial sectors related to this fuel, producing companies, logistics, dispensers and manufacturers of vehicles might be affected by this problem. This makes this topic very interesting, both from a scientific and an industrial point of view. This paper systematically reviews all aspects related to the corrosive behaviour of ethanol and ethanol-gasoline blends, with the aim of assessing the current state-of the-art as well as serving as a guide for further works that take the study of this subject matter.

show abstract

The polarization behavior of mild steel in ethanol/water/sulfuric acid system

Cited by 9 publications

References 8 publications

Corrosion of an austenite and ferrite stainless steel weld

Corrosion of an austenite and ferrite stainless steel weld

Study of Corrosion Effects of Oxidized Ethanol–Gasoline Blends on Metallic Materials

Revisión y estado del arte de la corrosividad del etanol y sus mezclas con gasolina

Contact Info

Product

Resources

About