Device and method for simulating dynamic corrosion of metal in deep geological disposal environment
A dynamic corrosion and deep geological technology, applied in measurement devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve the problems of inability to simulate the corrosion of metal materials, and it is difficult to study the long-term corrosion mechanism of metal materials and the role of high-level radioactive waste. To achieve good material selection and predict the effect of service life
Pending Publication Date: 2022-05-13
WUHAN UNIV OF TECH
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[0005] In view of this, it is necessary to provide a device and method for simulating the dynamic corrosion of metals in a deep geological disposal environment, so as to solve the problem that the existing tests for studying the corrosion of metal materials in a simulated static groundwater environment cannot simulate the corrosion of metal materials in a dynamic environment. Therefore, it is difficult to study the long-term corrosion mechanism of metal materials in the deep geological disposal environment and the technical problems of the effect on high-level radioactive waste
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[0030] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.
[0031] Please refer to figure 1 and figure 2 , The present invention provides a device for simulating dynamic corrosion of metals in deep geological disposal environment, comprising a water storage tank 1, a buffer tank 2, a water outlet pipe 3, a water pump 4, a water return pipe 5, a testing mechanism 6 and an electrochemical workstation.
[0032] One end of the outlet pipe 3 communicates with the water storage tank 1 , and the other end of the outlet pipe 3 communicates with the buffer tank 2 . The water pump 4 is arranged on the water outlet pipe 3 . One end of the water return pipe 5 ...
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The invention discloses a device and a method for simulating metal dynamic corrosion in a deep geological disposal environment. The device comprises a water storage tank, a buffer tank, a water outlet pipe, a water pump, a water return pipe, a testing mechanism and an electrochemical workstation, the testing mechanism comprises a working electrode, a counter electrode and a reference electrode, the working electrode, the counter electrode and the reference electrode are in contact with fluid in the water outlet pipe, and the working electrode is made of metal or uranium blocks to be tested. The electrochemical testing device has the beneficial effects that in the water solution circulation process, electrokinetic potential polarization curve and alternating current impedance spectroscopy electrochemical testing is carried out through the electrochemical workstation, the working electrode, the counter electrode and the reference electrode, so that the corrosion mechanism of metal is conveniently analyzed; afterwards, the aqueous solution in the water storage tank is replaced with an aqueous solution containing nuclide ions, so that the action mechanism of corrosion of the metal sample on nuclide can be analyzed. Therefore, the device can be used for simulating a metal corrosion mechanism in a dynamic water environment and the effect of the device on high-level waste.
Description
technical field [0001] The invention relates to the technical field of metal corrosion mechanisms, in particular to a device and method for simulating dynamic corrosion of metals in deep geological disposal environments. Background technique [0002] Since the 20th century, the continuous development of nuclear science and technology and the peaceful use of nuclear energy have greatly satisfied human needs for energy. But nuclear energy produces a lot of radioactive waste while bringing economic benefits. Among them, high-level radioactive waste is a kind of waste with strong radioactivity, high calorific value, high toxicity and long half-life that is inevitable in the process of nuclear energy utilization. How to safely dispose of high-level radioactive waste has become a major safety and environmental issue. At present, the internationally accepted disposal method for these high-level radioactive wastes is deep geological disposal, that is, to bury high-level radioactiv...
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Login to View More IPC IPC(8): G01N17/02
CPCG01N17/02G01N17/006
Inventor 杨淼褚栋良李腾黄国凯
Owner WUHAN UNIV OF TECH