In situ observation experiment apparatus for electrochemical corrosion measurement

Abstract

The invention relates to the field of electrochemical corrosion measurements, particularly to an in situ observation experiment apparatus for an electrochemical corrosion measurement, wherein a purpose of the present invention is to solve problems that the electrochemical corrosion measurement in the prior art can not observe changes generated on the metal material surface during the experiment process and the like. According to the in situ observation experiment apparatus, a transparent corrosive liquid is filled in a container, a metal sample, an auxiliary electrode and a reference electrode are connected with an electrochemical workstation through conducting wires, and a miniature digital microscope is arranged above the metal sample. According to the present invention, the miniature digital microscope can observe the change of the metal surface in the transparent corrosive solution along with changes of the experiment time, the polarization potential and other parameters at any time so as to acquire the metal surface topography image in real time; and the electrochemical measurement result can be corresponded to the metal surface topography image to acquire sufficient information and data so as to well analyze the corrosion mechanism of the metal material.

Description

technical field [0001] The invention relates to the field of electrochemical corrosion measurement, in particular to an in-situ observation experimental device for electrochemical corrosion measurement. Background technique [0002] Corrosion is one of the basic forms of material failure. The annual loss caused by corrosion in my country accounts for about 5% of the gross national product. Electrochemical corrosion is one of the basic types of corrosion. Studying the electrochemical corrosion behavior of materials in different media is of great significance for the study of corrosion mechanism, protection technology, material selection, alloy design, etc. [0003] Electrochemical measurement, as the main means to study electrochemical corrosion, can obtain material corrosion kinetic data and provide an important basis for inferring material corrosion mechanism. However, electrochemical testing techniques still have their limitations, such as the inability to obtain in-situ ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an in-situ observation experimental device for electrochemical corrosion measurement, which solves the problems in the prior art that the electrochemical corrosion measurement cannot observe the changes that occur on the surface of metal materials during the experiment.

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