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Simultaneous testing method for metal atmospheric corrosion behavior and used device thereof

A technology of atmospheric corrosion and combined testing, which is applied in the direction of measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve the problems of long cycle and passive data, and achieve the effect of easy operation, convenient installation and good compatibility

Inactive Publication Date: 2007-08-15
OCEAN UNIV OF CHINA
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Problems solved by technology

[0003] Due to the complexity of atmospheric corrosion, electrochemistry alone cannot fully understand the corrosion process, and electrochemical testing methods should be combined with other analytical testing methods
At present, the data obtained from the on-site atmospheric exposure and corrosion have high accuracy and practical value, but the acquisition method of this data is very passive and the cycle is long, so the importance of simulation research in the laboratory is self-evident

Method used

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  • Simultaneous testing method for metal atmospheric corrosion behavior and used device thereof

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0011] The combined test device of the present invention has an atmospheric corrosion atmosphere box 1, and the bottom center in the atmospheric corrosion atmosphere box 1 is equipped with a quartz crystal electrode 2, and a supporting base 8 with the quartz crystal electrode 2 is housed; the quartz crystal electrode 2 has a quartz crystal sheet 3. The working surface 4 and the reference surface 5; the lower right part of the atmospheric corrosion atmosphere box 1 has an air inlet 6, the upper left part has an air outlet 7, and 3-5 height-adjustable bolts 9 are installed on the bottom edge; the atmospheric corrosion atmosphere box 1 The movable vane 10 with adjustable caliber is installed in the center of the top of the top, and the Kelvin probe 11 is at the center of the vane 10; the working surface 4 and the reference surface 5 of the quartz crystal electrod...

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Abstract

This invention relates to one device to test metal materials gas erosion by use of Kelvin detector and quartz micro balance, which comprises the following steps: in testing, sealing the deposited Pt or Au film of quartz slices and removing oil and drying; depositing the aim metal into quartz transistor slice outer surface; adjusting the gas case flow; using SKP scan electrode surface level distribution by use of QCM test electrode surface mass change; the said device cannot be touched without loss on metal surface erosion level.

Description

technical field [0001] The invention relates to a method for testing metal corrosion, in particular to a method for jointly testing the atmospheric corrosion behavior of metal materials with a scanning Kelvin probe (SKP) and a quartz crystal microbalance (QCM) and the device used. Background technique [0002] Atmospheric corrosion research of metals generally uses outdoor exposure tests, indoor accelerated tests and simulation tests, combined with various testing techniques such as X-ray diffraction, scanning electron microscopy, electrochemistry, infrared spectroscopy, quartz crystal microbalance, and laser Raman spectroscopy. The corrosion of metals in the atmosphere is essentially an electrochemical process under the condition of a thin liquid film. Therefore, when exploring the mechanism of atmospheric corrosion of materials and in-depth understanding of the laws of atmospheric corrosion, electrochemical measurement technology is essential. At present, the most promisin...

Claims

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Application Information

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IPC IPC(8): G01N17/00
Inventor 唐晓王佳
Owner OCEAN UNIV OF CHINA
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