Intermittent immersion corrosion test method and device based on slow tensile stress corrosion testing machine

A corrosion test and tensile stress technology, applied in the direction of measuring devices, weather resistance/light resistance/corrosion resistance, using stable tension/pressure to test the strength of materials, etc., can solve the problem of not being able to simulate the immersion environment in the tidal range and unable to characterize materials Stress corrosion sensitivity and other issues, to achieve the effect of ensuring long-term stable operation, simple structure, and easy disassembly
CN106323784AInactive Publication Date: 2017-01-11725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
Publication Date
2017-01-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of material corrosion testing and discloses an intermittent immersion corrosion test method and intermittent immersion device based on a slow tensile stress corrosion testing machine. A tensile section of a sample is fixed to the intermittent immersion device, the two ends of the sample are fixed to a connection rod (12) and a base (13) of the slow tensile stress corrosion testing machine respectively, corrosion media can soak the sample in the corrosion box (1) at intervals through a corrosion box (1), a pump (3) and a liquid inlet hole (6) and a liquid outlet hole (7) in the corrosion box (1), slow tensile stress corrosion testing is combined with intermittent immersion testing, and stress corrosion resistance of a metal material in the tidal and splash zone environment can be evaluated more scientifically. The method has the advantages of being high in operability, low in reformation cost, high in practicality and the like, and can adapt to different types of slow tensile stress corrosion testing machines, round bar samples, rectangular samples and samples in other forms. The testing device is simple in structure and convenient to disassemble and assemble, and normal use of the slow tensile stress corrosion testing machine is not affected.
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Description

technical field

[0001] The invention relates to the technical field of material corrosion testing, in particular to an interleaving corrosion testing method based on a slow tensile stress corrosion testing machine and an interleaving device. Background technique

[0002] Stress corrosion refers to the corrosion damage of metals caused by the combined action of tensile stress and corrosive environment. It is a kind of brittle fracture with high risk. The slow tensile stress corrosion test is an effective test method to characterize the stress corrosion resistance of materials. This method can quickly evaluate the stress corrosion performance of materials, and the test cycle is short. It has been widely used in material evaluation and quality assurance testing.

[0003] Due to the tidal phenomenon of the ocean, the superstructure area of ​​the ship and the offshore platform present two different working states: submerged in seawater and exposed to the air. This alternating fe...

Claims

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