High-temperature high-pressure hydrogen-containing metal material mechanical performance testing device

Abstract

The invention discloses a novel high-temperature high-pressure hydrogen-containing metal material mechanical performance testing device. The device comprises an upper pull rod seal locking part, a corrugated pipe seal connection part, a quartz glass tensile test cavity, a cavity compression joint sealing element, an evacuation and air inflation control cavity, an evacuation and air inflation control device, a vacuum pump, a water circulation system, a sample holder, a high temperature furnace, a tensile sample, a rapid compression member, an air inflation locking part, a bilateral deformationmeasuring device, a vacuum transition aerial linker, a compression clamping device, a compression sample, a three-point bending device and an observation window. The testing device can simulate a tensile mechanical property test, a compressive mechanical property test and a three-point bending test on a metal material in a high-temperature high-pressure hydrogen-containing environment and can really show the performance parameters of the metal material under actual working conditions.

Description

technical field [0001] The invention relates to a metal material testing machine, in particular to a novel high-temperature and high-pressure hydrogen-containing metal material mechanical performance testing device. Background technique [0002] At present, metal mechanical performance testing is of great significance to the development and development of new metal materials, improving material quality, and maximizing the potential of materials. In order to accurately characterize the behavior of metal materials under service conditions, the mechanical performance testing conditions should be as close as possible to actual work. Conditions, long-term work of metal materials in a high-temperature, high-pressure hydrogen-containing environment will cause hydrogen embrittlement, such as reduced plasticity and accelerated crack growth, but currently there is no test device for testing the mechanical properties of metal materials in high-temperature and high-pressure hydrogen-cont...

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Problems solved by technology

[0002] At present, metal mechanical performance testing is of great significance to the development and development of new metal materials, improving material quality, and maximizing the potential of materials. In order to accurately characterize the behavior of metal materials under service conditions, the mechanical performance testing conditions should be as close as possible to actual work. Under the condition of high temperature and high pressure hydrogen-containing environment, metal materials will have hydrogen embrittlement phenomenon such as reduced plasticity and accelerated crack growth speed when working for a long time in a high-temperature, high-pressure hydrogen-containing environment.

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