Handbook on Corrosion Testing and Evaluation

Ailor, William; King, C. V.

doi:10.1149/1.2403807

Cited by 55 publications

(33 citation statements)

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“…This value is similar to that obtained by the intersection of Tafel lines [24]. The corrosion current (i corr ) was determined by employing the SternGeary equation given by [25]:…”

Section: Methodssupporting

confidence: 74%

Influence of microstructure on the corrosion behavior of nitrocarburized AISI H13 tool steel obtained by pulsed DC plasma

Basso

Candal

Figueroa

et al. 2009

Surface and Coatings Technology

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“…This value is similar to that obtained by the intersection of Tafel lines [24]. The corrosion current (i corr ) was determined by employing the SternGeary equation given by [25]:…”

Section: Methodssupporting

confidence: 74%

Influence of microstructure on the corrosion behavior of nitrocarburized AISI H13 tool steel obtained by pulsed DC plasma

Basso

Candal

Figueroa

et al. 2009

Surface and Coatings Technology

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“…In general single phases such as ferrite, austenite and martensite perform better in corrosive environment than the two phase mixture such as pearlite, bainite and tempered martensite. The two phases in ADI (ferrite and retained austenite) could act as electrochemical cell and aid corrosion (Ailor, 1971). Since low temperatures ADIs have a fine structure, the two phases are so closely spaced that there are a number of such cells in a small area.…”

Section: Figurementioning

confidence: 99%

Corrosion behavior of austempered ductile iron (ADI) in iron ore slurry

Pooja¹,

Vijeesh²,

Surendranathan³

et al. 2016

Int. J. Eng. Sci. Tech

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Corrosion behavior of austempered ductile iron (ADI) in iron ore slurry was studied as a function of the microstructure developed by austempering at 380 and 300°C for different exposure time in the slurry. The corrosion rates of the ADI balls immersed in the iron ore slurry was determined using weight loss method. It was found that the pH of the iron ore slurry increased with time and the corrosion behavior is also influenced by the pH of the slurry and the austempering treatment. The ADI austempered at higher temperature showed better corrosion resistance than the ones austempered at lower temperature. The complex nature of corrosion of ADI is influenced by contents of retained austenite, ferrite and the carbon content in a collective way.

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“…Among the several methods that abound [8,9,10,11], the method of weight change determination was chosen for the measurement of relative aggressiveness of the test environments. This was due to the ready availability of the required laboratory apparatus.…”

Section: Corrosion Measurementmentioning

confidence: 99%

The Relative Corrosion Severity of Laboratory Environments on Mild Steel, Medium Carbon Steel, Brass and Aluminium

Sodiki¹

2015

IJET

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Abstract-By the measurement of weight changes with time, the extents of corrosion on specimens of mild steel, medium carbon steel, brass and aluminum exposed to the laboratory atmosphere and 0.1M solutions of sodium chloride, ammonium hydroxide and hydrochloric acid were obtained. These solutions, respectively, represent salt, basic and acid environments that are usually encountered by the test metals in actual service. Corrosion -time graphs were then drawn for each exposure environment to facilitate the assessment of the relative aggressiveness of each environment on the test metals. A graphical illustration was further made to show the relative aggressiveness of the environments on any particular metal.Index Terms-Laboratory environments, mild steel, medium carbon steel, brass, aluminum. I. INTRODUCTIONIn selecting a metal for a specific application, it is necessary to have a prior knowledge of its corrosion behavior in the particular environment. In some other circumstances, it may also be required to have a knowledge of the relative aggressiveness of different environments on a particular service metal; or of the relative aggressiveness of a particular environment on different metals. Such knowledge is important, for instance, in a situation where alternative metal containers are being contemplated to hold a particular corrosive liquid.In nearly neutral aqueous environments, the corrosion of metals is a result of the oxidation of the metal by a reaction which in its simplest form may be written as [1].Assuming the metal to be bivalent as in the case of iron, copper and zinc; or as in the case of a trivalent metal such as aluminum.It is well known that the susceptibility of a metal to electrochemical corrosion, to a large extent, depends on the metal's position in the electrochemical series; and when metals and their alloys are in service their relative corrosion behavior is usually predictable by recourse to the galvanic series relevant to the service environment. There is, thus, the While the galvanic series are useful in predicting the corrosion behavior of unprotected metals, several other factors come into play in determining actual corrosion patterns. Such factors include the metal's exact composition; its dimensional properties such as surface area, shape, and surface roughness index; and its surface temperature. The actual relative aggressiveness of different service environments on metals would therefore be known only through controlled experiments.In this paper, the relative extent of corrosion, after any given time of exposure of specimens of mild steel, medium carbon steel, brass and aluminum, in particular laboratory environments are assessed. The environments utilized are the laboratory atmosphere and 0.1M solutions of sodium chloride, ammonium hydroxide and hydrochloric acid. These solutions respectively represent salt, basic and acid environments that are usually encountered by the test materials in actual service.For the sake of achieving the desired control in experimentation, factors which...

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Handbook on Corrosion Testing and Evaluation

Abstract: not Available.

Cited by 55 publications

References 0 publications

Influence of microstructure on the corrosion behavior of nitrocarburized AISI H13 tool steel obtained by pulsed DC plasma

Influence of microstructure on the corrosion behavior of nitrocarburized AISI H13 tool steel obtained by pulsed DC plasma

Corrosion behavior of austempered ductile iron (ADI) in iron ore slurry

The Relative Corrosion Severity of Laboratory Environments on Mild Steel, Medium Carbon Steel, Brass and Aluminium

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