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In-situ micro-nano indentation test system and method in ultrahigh-temperature water-oxygen environment

A test system, micro-nano technology, applied in the direction of testing wear resistance, measuring devices, instruments, etc., can solve problems such as stress release and inability to characterize the mechanical properties of samples

Pending Publication Date: 2021-01-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the transfer of the sample from the tube furnace to the high-temperature indentation device, changes in the temperature and position of the sample can cause problems such as stress release
Therefore, existing devices and experimental methods cannot characterize the mechanical properties of samples in real service environments

Method used

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  • In-situ micro-nano indentation test system and method in ultrahigh-temperature water-oxygen environment
  • In-situ micro-nano indentation test system and method in ultrahigh-temperature water-oxygen environment
  • In-situ micro-nano indentation test system and method in ultrahigh-temperature water-oxygen environment

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Embodiment Construction

[0038] The present invention will be further elaborated below through specific embodiments in conjunction with the accompanying drawings.

[0039] The in-situ micro-nano indentation test system in the ultra-high temperature water and oxygen environment of this embodiment includes: a gas generation device A, an ultra-high temperature water and oxygen assessment and indentation test device B, and an exhaust gas treatment device C, such as figure 1 As shown; Among them, the ultra-high temperature water oxygen assessment and indentation test device B includes: the air inlet side box, the air outlet side box 1, the slide rail 2, the flat plate, the lifting support 3, the base 4, and the sample platform 5 , Platform fixing seat 6, water cooling layer of the air inlet side box, water cooling layer of the air outlet side box 7, heat insulation layer of the air inlet side box, heat insulation layer of the air outlet side box 8, air inlet side box Protective pipe, air outlet side box pr...

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Abstract

The invention discloses an in-situ micro-nano indentation test system and method in an ultrahigh-temperature water-oxygen environment. According to the invention, a horizontally-placed protective pipeline in a traditional tubular furnace is changed into a vertically-placed protective pipeline, and a pressing rod and a sample platform respectively enter from the two ends of the vertically-placed protective pipeline, so that not only is the punching on the pipe wall avoided, but also the selection of a longer pressing rod due to the selection of a large-diameter protective pipeline is avoided; along-range slide rail is selected, a box body is moved to be far away from a pressure rod drive through the slide rail during the water-oxygen examination of the sample, and after the water-oxygen examination is completed, the box body is moved to be below the pressure rod through the slide rail to complete the indentation test; and the integrated design is adopted, a coating sample can be subjected to in-situ micro-nano indentation testing after being subjected to any water-oxygen proportion assessment in the high-temperature environment of 1600 DEG C, in-situ characterization of the mechanical property of the coating sample in the ultrahigh-temperature water-oxygen environment is achieved, the feasibility is high, and operation is easy.

Description

technical field [0001] The invention relates to an ultra-high temperature mechanical testing technology, in particular to an in-situ micro-nano indentation testing system and a testing method thereof in an ultra-high temperature water-oxygen environment. Background technique [0002] Improving the inlet temperature of the engine turbine and reducing the structural weight are the keys to the development of the next generation of advanced aeroengines and civil engines with large bypass ratios. As a substitute for superalloys, SiC / SiC composites made of thermal structural parts resistant to higher temperatures have been used in commercial engines, and the environmental barrier coating is the key to its successful application. Environmental barrier coating (EBC) is an inevitable choice to solve the long-term service of SiC / SiC hot end parts in the engine environment. The performance of the end parts deteriorated dramatically. In order to solve the core problem of ensuring the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
CPCG01N3/567G01N2203/0244
Inventor 曲兆亮白浩然吕伯文王一光方岱宁
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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