Test device for simulating and testing thermal fatigue failure of high-temperature part in real time
A high-temperature component, real-time testing technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., to achieve the effect of simple operation, fast heating and cooling rate, and easy test equipment
Active Publication Date: 2012-06-20
XIANGTAN UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to solve the thorny problems existing in the existing real-time detection of thermal fatigue failure of high-temperature components, to provide a test device for simulating and real-time testing of thermal fatigue failure of high-temperature components, and to realize the detection of multiple thermal fatigue failures during the test process. In-situ testing of parameters provides an effective solution for thermal fatigue performance and reliability evaluation of high-temperature components
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[0029] The present invention provides a test device for simulating and real-time testing of thermal fatigue failure of high-temperature components. The present invention will be further described below through the description of drawings and specific implementation methods.
[0030] Such as figure 1 As shown, the structure of the test device includes: a test bench, a high-temperature gas bidirectional heating system connected to the test bench, a temperature test collection system 12, a cooling system 14, a non-contact three-dimensional deformation test system 16, and an acoustic emission non-destructive Detection system 11, AC complex impedance spectrum monitoring system 13, test control platform 2.
[0031] Such as figure 2 As shown, the structure of the test bench is as follows: a clamp 111 and a clamp fixture 107 for clamping the sample 5 are installed at the middle position on the test test platform 101, and the upper and lower positions of the clamp 111 are adjustable;...
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Abstract
The invention belongs to the field of high-temperature part detecting equipment, in particular to a test device for simulating and testing the thermal fatigue failure of a high-temperature part in real time. The device mainly comprises a high-temperature gas two-way heating system, a real-time temperature testing and collecting system, a cooling system, an ARAMIS non-contact three-dimensional deformation test system, a PCI-2 AE non-destructive detection system, a 1260+1296-type material electric property AC impedance spectroscopy test system, a test control platform and the like. The device can simulate the thermal fatigue work environment of alternating temperature cycle in a high-performance aircraft engine, and synchronously realize the real-time testing and the analysis to the sample temperature, temperature gradient, surface morphology image evolution, three-dimensional deformation field, three-dimensional displacement field, interfacial oxide layer and thickening law, thermal fatigue crack initiation and propagation, cooling gas flow and other data. The device can provide an important experimental platform for effectively evaluating the fatigue failure process and the failure mechanism of the high-temperature part in the high-temperature thermal cycle environment.
Description
technical field [0001] The invention belongs to the field of high-temperature component detection equipment, and specifically relates to a test device for simulating and real-time testing of thermal fatigue failure of high-temperature components, in particular to a test device for simulating high-temperature high-temperature alloys of aeroengines and thermal barrier coatings Thermal fatigue working environment of components, and a test device for real-time testing of multiple thermal fatigue failure parameters. Background technique [0002] In recent years, with the development of aero-engines in the direction of high bypass ratio, high thrust-to-weight ratio, and high turbine inlet temperature, the operating temperature of high-temperature components of the engine is getting higher and higher, especially the gas temperature and gas pressure in the combustion chamber are constantly increasing, such as gas pressure Compared with the first-generation machine, it has been incre...
Claims
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IPC IPC(8): G01N17/00
Inventor周益春毛卫国吴多锦杨丽
OwnerXIANGTAN UNIV