Material corrosion tensile fatigue test device and method
A fatigue test and tensile device technology, used in measuring devices, analytical materials, weather resistance/light resistance/corrosion resistance, etc., can solve the problems of not considering the joint action of corrosive media, complicated operation, etc., to achieve good compatibility and uniform corrosion. , the effect of increasing the corrosion area
Active Publication Date: 2022-03-01
JILIN UNIV
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Problems solved by technology
In the conventional material corrosion fatigue test, due to the limitation of the equipment, the material is usually stretched first, and then switched to another equipment for corrosion, which is complicated to operate.
And it does not consider the combined effect of tensile stress and corrosive medium on the material in the service environment
Method used
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Embodiment Construction
[0037] see Figure 1-8 Shown:
[0038] The present invention provides a material corrosion tensile fatigue test device, comprising a frame body 1, a corrosive liquid container 2, a rotary injector 3, and a stretching device 4, and the corrosive liquid container 2 is fixed on the base 5 of the frame body 1; The rotary injector 3 includes a rotary disk 6 and a nozzle 7, the rotary disk 6 is fixed on the lower end of the upper beam 8 of the frame body 1, and the nozzle 7 is arranged below the rotary disk 6 and extends into the corrosive liquid container 2; The upper part of the stretching device 4 is fixed to the upper beam 8 of the frame body 1, and the lower end passes through the rotary injector 3 and is fixed at the bottom of the corrosive liquid container 2; the test piece 9 is fixed by the stretching device 4. The crossbeam 8 is fixed above the base 5 through a column 40 .
[0039] The stretching device 4 includes a servo electric cylinder 10, a clamping device 11 and a f...
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The invention relates to a material corrosion tensile fatigue test device which comprises a frame body, a corrosive liquid container, a rotary ejector and a tensile device, and the corrosive liquid container is fixed on a base of the frame body; the upper part of the stretching device is fixed with a cross beam at the upper part of the frame body, and the lower end of the stretching device penetrates through the rotary ejector and is fixed at the bottom of the corrosive liquid container; the test piece is fixed through the stretching device. The invention further provides a material corrosion tensile fatigue test method, the material corrosion tensile fatigue test device is used for testing, the combined action of tensile stress and a corrosion medium in a service environment can be simulated, corrosion-tensile, tensile-corrosion and tensile corrosion composite tests can be carried out on a test piece, and the material corrosion tensile fatigue test device can be used for testing the material corrosion tensile fatigue. The device has good compatibility with the plate-shaped test pieces with different lengths, and the plate-shaped test pieces can still be uniformly and comprehensively corroded in the stretching process.
Description
technical field [0001] The invention relates to the field of material testing, in particular to a material corrosion tensile fatigue test device and method. Background technique [0002] Corrosion problems are ubiquitous, including metal materials, inorganic non-metallic materials, organic polymer materials and composite materials, etc., all of which have corrosion problems. A large number of facts show that the premature failure of materials is mainly caused by corrosion, wear (friction and wear corrosion) and fatigue (fatigue and corrosion fatigue) caused by materials under the action of operating environment, manufacturing environment and natural environment. The economic losses are also staggering. [0003] Especially in aerospace, marine engineering and other fields, the corrosion of materials needs special attention. Due to the complex and changeable service environment and the mutual influence of different constituent materials, aerospace materials suffer from vario...
Claims
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IPC IPC(8): G01N3/36G01N3/04G01N3/02G01N17/00
CPCG01N3/36G01N3/04G01N3/02G01N17/002G01N2203/0017G01N2203/0019G01N2203/0048G01N2203/0073G01N2203/024Y02E30/30
Inventor 赵宏伟王可心赵久成王洋张世忠张建海
Owner JILIN UNIV