Device and method for carrying out stress corrosion experiment in high-temperature liquid-phase corrosion environment

A technology for stress corrosion and corrosive environments, applied in measuring devices, using stable tension/pressure testing materials, instruments, etc. precise control, etc.
CN111504801APending Publication Date: 2020-08-07西安稀有金属材料研究院有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
西安稀有金属材料研究院有限公司
Publication Date
2020-08-07

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Abstract

The invention discloses a device for carrying out a stress corrosion experiment in a high-temperature liquid-phase corrosion environment. The device comprises a universal testing machine and a stresscorrosion experiment box clamped with the universal testing machine through a clamper; the stress corrosion experiment box comprises a double-layer glass cylinder, and an upper plug and a lower plug which are hermetically connected with the double-layer glass cylinder; an upper plug sample through hole and a condensing device through hole matched with the condensing device are formed in the upperplug, a lower plug sample through hole is formed in the lower plug, and the upper plug sample through hole and the lower plug sample through hole are connected with the stress corrosion experiment sample in a sealed mode. Besides, the invention also discloses a stress corrosion experiment method, and the method comprises the following steps: loading a stress corrosion experiment sample and corrosive liquid into the stress corrosion experiment box by using a universal testing machine to obtain the loaded experiment sample and data. According to the invention, the universal testing machine is prevented from being contacted with corrosive liquid, a stress corrosion experiment is carried out in a high-temperature liquid-phase corrosion environment, and accurate loading and real-time observation can be realized.
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Description

technical field

[0001] The invention belongs to the technical field of stress corrosion performance testing, and in particular relates to a device and method for performing stress corrosion experiments in a high-temperature liquid phase corrosion environment. Background technique

[0002] The metal erosion caused by the simultaneous action of corrosive environment and static tensile stress often leads to the formation of cracks, resulting in a significant decline in the bearing capacity of metal structures.

[0003] There are various methods for evaluating the stress corrosion performance of metals. In some cases, each method has its own special advantages. Before making a stress corrosion test plan, it must be decided which method is suitable for the test. Depending on the purpose of the experiment and the information required, some experiments are only valuable to the plant engineer and try to replicate the active service conditions as much as possible. Simpler experimenta...

Claims

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