Method and device for studying metal hydrogen infiltration in medium under dynamic load condition
A condition and medium technology, which is applied in the field of devices for studying metal hydrogen permeation behavior, and achieves the effects of simple operation, low cost and high precision
Inactive Publication Date: 2008-10-22
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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Problems solved by technology
However, the general Devnathan-Stachurski double electrolytic cell commonly used at present can only measure the hydrogen permeation current of the specimen under the condition of no stress.
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[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0028] The present invention includes an electrolytic cell, a sample 1 as a common working electrode, an A3 steel rod 2 fixed inside it, a first reference electrode 12 and a first auxiliary electrode 13 . Sample 1 passes through the electrolytic cell and the working section is inside the electrolytic cell. Sample 1 is used as a common working electrode, and A3 steel rod 2 is used as a reference electrode and an auxiliary electrode at the same time. Sample 1 and A3 steel rod 2, sample 1, the first reference electrode 12 and the first auxiliary electrode 13 constitute two sets of three-electrode systems, and lead wires are respectively connected to the ports of the data collector.
[0029] Such as Figure 1 ~ Figure 3 As shown, the electrolytic cell comprises a loam cake 3, a cylindrical side wall 4 and a bottom plate 5, the bottom plate 5 is bonded to the low...
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Abstract
The invention relates to a device for researching the hydrogenium penetration action, specific to say that it's a device and method for researching the hydrogen penetration action of metal material under the dynamic load or arbitrary medium, A3 steel bar is fixed in the inner of the specimen, the specimen pass through the electrolytic pool and the work part is placed in the electrolytic pool, the specimen is I -shaped column, interior is empty, the A3 steel bar is place in the specimen and keep an space with the specimen, one end of the A3 steel bar is fixed on the inner wall of specimen by the epoxy resin, and the other end is sealed by the organic glass plug with hole in the middle, the inner wall of specimen and the outer surface of A3 steel bar covers with nickel plate, the secondary distilled water solution with NaOH is filled in the space between the specimen and the A3 steel bar. The invention can detect the hydrogen penetration current under the dynamic load and makes amend for the disadvantages of that the hydrogen penetration current just be detected without force.
Description
technical field [0001] The invention relates to a device for studying the hydrogen permeation behavior of metals, in particular to a device and method for studying the hydrogen permeation behavior of metal materials in any medium under dynamic load conditions. Background technique [0002] The slow strain rate tensile test (SSRT) method refers to placing the tensile test piece in a certain environment, loading it into a special slow strain rate testing machine, and stretching the test piece with a fixed and slow strain rate until it breaks. This method is very effective for studying the susceptibility and mechanism of stress corrosion cracking in alloy-environment systems. [0003] Hydrogen evolution reaction will occur during the metal corrosion process, and hydrogen will have a serious impact after entering the lattice of sensitive materials and cause embrittlement of sensitive materials, embrittlement will lead to the formation of cracks in sensitive materials and acceler...
Claims
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IPC IPC(8): G01N27/403G01N3/28
Inventor 黄彦良朱永艳
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI