High temperature superheated steam environment creep fatigue test device

Abstract

The invention relates to the field of material tension loading creep fatigue test, in particular to a high temperature superheated steam environment creep fatigue test device. The device at least comprises a creep fatigue test machine loading frame, which is provided with an upper pull rod and a lower pull rod. The device also includes a heat-resistant transparent pipe, an upper ring cap and a lower ring cap are coaxially fixed on the upper pull rod body and the lower pull rod body, corrugated pipes are coaxially disposed in seal joint with the upper ring cap, the lower ring cap and the corresponding end pipe orifices of the heat-resistant transparent pipe, and the upper ring cap, the corrugated pipe walls, the heat-resistant transparent pipe wall and the lower ring cap together enclose a sealed cladding type sample test environment. The air inlet end and air outlet end of a steam generation assembly run through the upper ring cap and the lower ring cap to communicate with the seal cavity. The device also includes an induction heating assembly. The device provided by the invention can accurately detect various material performance of a to-be-tested sample in a service environment, and provides the necessary equipment for the material failure mechanism research.

Description

technical field [0001] The invention relates to the field of creep fatigue testing under tensile loading of materials, in particular to a high-temperature superheated steam environment creep fatigue testing device for testing metal materials in service environments. Background technique [0002] Superheated steam is widely used in power generation, mechanical processing, food and other industries. Its generators, pipelines, and even application objects (such as steam turbines) serve in harsh environments and often withstand high temperatures, superheated steam, static stress, and dynamic stress at the same time. Due to the effect of variable stress, it is not uncommon for equipment material performance to deteriorate or even fail, which seriously affects the safe operation of equipment. For this reason, there is an urgent need for a test device that can accurately simulate its service environment and test the performance state of materials in this environment, specifically f...

AI Technical Summary

Problems solved by technology

[0002] Superheated steam is widely used in power generation, mechanical processing, food and other industries. Its generators, pipelines, and even application objects (such as steam turbines) serve in harsh environments and often withstand high temperatures, superheated steam, static stress, and dynamic stress at the same time. Due to the effect of variable stress, it is not uncommon for equipment material performance to deteriorate or even fail, which seriously affects the safe operation of equipment.

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