Device for testing stress corrosion behavior of metal material under fluid high pressure

A technology of stress corrosion and metal materials, applied in measuring devices, using stable tension/pressure to test the strength of materials, analyzing materials, etc., can solve the problems of inability to greatly adjust the applied stress, apply electrochemical signals, and relax frame materials , to achieve the effect of avoiding stress conduction, high sealing requirements, simple principle, and reduced requirements
CN106442136AActive Publication Date: 2017-02-22UNIV OF SCI & TECH BEIJING
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Publication Date
2017-02-22

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Abstract

The invention provides a device for testing the stress corrosion behavior of a metal material under fluid high pressure, belonging to the technical field of metal material test equipment. The device comprises a high-pressure kettle, an electrochemical workstation, a timer, a bundled wire, a stud, a loading nut, a loading device top plate, a closed threaded sleeve, a high-strength insulating spacer, a threaded sleeve, a loading device bottom plate, an auxiliary electrode, a reference electrode, a steel wire rope, a powerful instant adhesive, an insulating coating layer and a rectangular spring and is used for testing the stress corrosion behavior of the metal material under fluid high pressure. The loading way is a constant-load loading way which is implemented by a spring and the stress magnitude of which can be conveniently adjusted. The device can solve the problems of high requirement on stress conduction air tightness between the loading equipment and the high-pressure kettle in the prior art, inconvenience in adjusting the loading stress and electrochemical performance study in a stress corrosion test process of a high-pressure environment.
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Description

technical field

[0001] The invention relates to the technical field of metal material testing equipment, in particular to a device for testing the stress corrosion behavior of metal materials under fluid high pressure. Background technique

[0002] As people continue to explore the depth of the ocean, the applicability of marine engineering materials in deep-sea corrosion environments is also facing a huge test. The deep-sea real-sea environmental corrosion test has the natural shortcomings of high difficulty, high investment, high failure risk, and long test period. Therefore, the current corrosion experiments of materials under deep-sea conditions are mainly based on laboratory simulation environments, and the simulated environments mainly include high pressure, low temperature, low dissolved oxygen, and different solution components. Among them, the simulation of the high-pressure environment mainly relies on various types of autoclaves. Due to the limitations of the sel...

Claims

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