L'application de methodes transitoires à l'étude des phénomènes de corrosion

M.J. Brabers; Ph. Mechelynck; Emile Musyck; G.J. Spaepen

L'application de methodes transitoires à l'étude des phénomènes de corrosion

M.J. Brabers, Ph. Mechelynck, Emile Musyck, G.J. Spaepen

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Abstract

A chronopotentiometric method is proposed for the fundamental study of corrosion processes. It consists of recording, as a function of time, the evolution of the specimen surface condition, indicated by the current density or the electrode tension. In the present paper the coulometry at constant current has been chosen because tension-time curves permit an easy interpretation of the electrochemical phenomena. An apparatus has been developed which permits the measurement of reaction times of the order of 10^-4—10^-6sec and accurate evaluation of the electrode tensions. The electric current source supplies currents between 10^-6and I0^-2 A which are constant under all conditions; the error in the value of the current is less than 1 per cent. This method is applied to the anodization process of aluminum and its alloys. The method is particularly suited for the study of the surface condition of the specimen. A loop has been constructed which permits the same measurements with neutron and gamma
irradiation in the BRI reactor.

Original language	English
Publisher	SCK CEN
Number of pages	17
State	Published - Apr 1961

Publication series

Name	SCK CEN Reports
Publisher	SCK CEN
No.	BLG-137

Cite this

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title = "L'application de methodes transitoires {\`a} l'{\'e}tude des ph{\'e}nom{\`e}nes de corrosion",

abstract = "A chronopotentiometric method is proposed for the fundamental study of corrosion processes. It consists of recording, as a function of time, the evolution of the specimen surface condition, indicated by the current density or the electrode tension. In the present paper the coulometry at constant current has been chosen because tension-time curves permit an easy interpretation of the electrochemical phenomena. An apparatus has been developed which permits the measurement of reaction times of the order of 10-4—10-6 sec and accurate evaluation of the electrode tensions. The electric current source supplies currents between 10-6 and I0-2 A which are constant under all conditions; the error in the value of the current is less than 1 per cent. This method is applied to the anodization process of aluminum and its alloys. The method is particularly suited for the study of the surface condition of the specimen. A loop has been constructed which permits the same measurements with neutron and gammairradiation in the BRI reactor.",

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AU - Brabers, M.J.

AU - Mechelynck, Ph.

AU - Musyck, Emile

AU - Spaepen, G.J.

PY - 1961/4

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N2 - A chronopotentiometric method is proposed for the fundamental study of corrosion processes. It consists of recording, as a function of time, the evolution of the specimen surface condition, indicated by the current density or the electrode tension. In the present paper the coulometry at constant current has been chosen because tension-time curves permit an easy interpretation of the electrochemical phenomena. An apparatus has been developed which permits the measurement of reaction times of the order of 10-4—10-6 sec and accurate evaluation of the electrode tensions. The electric current source supplies currents between 10-6 and I0-2 A which are constant under all conditions; the error in the value of the current is less than 1 per cent. This method is applied to the anodization process of aluminum and its alloys. The method is particularly suited for the study of the surface condition of the specimen. A loop has been constructed which permits the same measurements with neutron and gammairradiation in the BRI reactor.

AB - A chronopotentiometric method is proposed for the fundamental study of corrosion processes. It consists of recording, as a function of time, the evolution of the specimen surface condition, indicated by the current density or the electrode tension. In the present paper the coulometry at constant current has been chosen because tension-time curves permit an easy interpretation of the electrochemical phenomena. An apparatus has been developed which permits the measurement of reaction times of the order of 10-4—10-6 sec and accurate evaluation of the electrode tensions. The electric current source supplies currents between 10-6 and I0-2 A which are constant under all conditions; the error in the value of the current is less than 1 per cent. This method is applied to the anodization process of aluminum and its alloys. The method is particularly suited for the study of the surface condition of the specimen. A loop has been constructed which permits the same measurements with neutron and gammairradiation in the BRI reactor.

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