Dynamic electrochemical corrosion and wearing test device

Abstract

The invention discloses a dynamic electrochemical corrosion and wearing test device. An electrochemical workstation and friction and wearing functions are integrated, and in-situ and dynamic test of the interaction of corrosion and wearing is carried out. The corrosion and wearing test device is rotary, and adopts a pin-disc friction contact mode and a three-electrode electrochemical test system,a lower test piece is a working electrode, and is connected with the electrochemical workstation through a mercury slip ring to dynamically test the electrochemical parameters in a rotating friction state. The device can detect the simple grinding weight loss, the corrosion weight loss and the corrosion and wearing interaction amount, can respectively detect the corrosion rates under simple corrosion and the co-action of corrosion and wearing, realizes real-time monitoring of the electrochemical performances and the friction performance under different conditions (load, rotating speed and medium), can accurately realize simultaneous test and in-situ research of the corrosion and wearing of the material, further realizes the dynamic research of the corrosion and wearing interaction mechanism, and has wide application values.

Description

technical field [0001] The invention belongs to the research field of corrosion wear and electrochemical testing of metal materials, and in particular provides a novel friction wear-electrochemical testing and data acquisition device. It is suitable for testing tribological properties and electrochemical parameters in different solutions. It can not only measure the amount of corrosion and wear, but also the change of corrosion to material wear and the change of wear to corrosion. Perform electrochemical in situ control and monitoring. Background technique [0002] Corrosive wear usually refers to the surface damage of solids under the mechanical friction of other solids and the participation of corrosive media, which is the result of the interaction of mechanical factors, chemical factors and electrochemical factors. The interaction of corrosion and wear plays an extremely important role in promoting the loss of materials caused by corrosion and wear of materials. Therefor...

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Problems solved by technology

Previously, there was a Chinese patent "A Corrosion and Wear Synchronous Measurement Device" (CN87214788), which disclosed a device for synchronous measurement of corrosion and wear of metal materials. The research electrode for fixing the metal sample was made into a hollow rotating shaft, which can simultaneously Measure the wear rate and corrosion rate, but because there is no loading system designed, the influence of load on corrosion and wear cannot be investigated

There is also a corrosion product wear performance and corrosion electrochemical test device (CN200910076139.3), due to the lack of a loading system, the influence of load on corrosion and wear cannot be investigated

There is also a dynamic measurement device for the interaction between corrosion and wear (CN200620111395.3). This device cannot realize the synchronous output of material wear performance signals, such as the characterization of friction coefficient, so that the synchronous research on corrosion and wear performance is limited.

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