Device and method for testing material embrittlement under liquid metal condition

Abstract

The invention relates to a device and a method for testing material embrittlement under a liquid metal condition, and provides a platform and a test method for carrying out brittle failure sensitivity study on a structural material in liquid metal. The device comprises a fusion tank, a test tank, a stretching machine, a stretching sample, a sample clamp, a stretching main shaft, a drawing-bar connecting sleeve, a corrugated pipe and the like. The stretching sample is fixedly arranged on the sample clamp and is arranged inside the test tank, the liquid metal which is molten inside the fusion tank in advance is pressed into the test tank through a gas system, and then the stretching machine is used for stretching and testing the stretching sample. The device and the method are suitable for carrying out the embrittlement sensitivity study on the structural material in the liquid metal.

Description

technical field [0001] The invention relates to a material embrittlement test device and method under the condition of liquid metal, which is suitable for carrying out the brittle fracture susceptibility test research of structural materials in liquid metal. Background technique [0002] In a liquid metal environment, structural materials are subjected to simultaneous corrosion and thermal stress of liquid metals (such as lithium-lead or lead-bismuth alloys, etc.), which will lead to loss of toughness of structural materials and brittle fracture of structural materials, thus causing major safety accidents . The research has wide applications in many industrial fields such as nuclear reactor field. [0003] The device for carrying out the brittle fracture susceptibility test of structural materials in liquid metal can simulate the working conditions of structural materials in liquid metal close to the real situation. Guidance on material selection. [0004] At present, the...

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Problems solved by technology

[0005] The technical problem of the present invention is to overcome the defects of existing devices such as complex structure and single function, and provide a material embrittlement test device and method under liquid metal conditions, which have the advantages of convenient disassembly and assembly of tensile samples, high reliability of the device, and safety. With the advantages of high performance and complete functions, it can study the brittle fracture sensitivity and stress corrosion of tensile samples under the simultaneous action of liquid metal and stress.

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