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Synchronization testing device and testing method of thermal barrier performance and thermal shock performance of thermal barrier coating

A thermal barrier coating, synchronous testing technology, applied in measuring devices, material thermal analysis, instruments, etc., can solve the problem of single cooling method in thermal shock test test, thermal barrier performance of thermal barrier coating and thermal shock performance cannot be tested at the same time, etc. problem, to achieve the effect of effective evaluation of spraying effect, convenient test method and accurate test

Inactive Publication Date: 2013-06-05
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem of the present invention is to overcome the technical deficiency that the thermal barrier performance and thermal shock performance of the thermal barrier coating cannot be tested at the same time in the prior art and the single cooling method of the thermal shock test test, and to overcome the inability of the prior art to effectively simulate the metal matrix and the metal matrix of the ultra-high temperature forming die. The service condition of the surface coating is medium-cooled, providing a simultaneous test device and test method for the thermal barrier performance and thermal shock performance of a simple sample thermal barrier coating, which is used to realize the thermal barrier coating thermal barrier Simultaneous testing of performance and thermal shock performance

Method used

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  • Synchronization testing device and testing method of thermal barrier performance and thermal shock performance of thermal barrier coating
  • Synchronization testing device and testing method of thermal barrier performance and thermal shock performance of thermal barrier coating

Examples

Experimental program
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Effect test

Embodiment 1

[0049] The specific size of the thermal barrier coating sample is: sample shape Φ60×120mm; 4 cooling holes Φ8×120mm, the center of the hole is 9mm from the center of the sample, press figure 2 Array distribution; 4 temperature measuring holes Φ8×80mm, the center of the temperature measuring holes is 16mm, 28mm, 40mm and 52mm from the center of the sample in turn, according to figure 2 way distribution.

[0050] Install the ceramic plug 3 on one end of the thermal barrier coating sample, and then install the sample on the push rod 5 of the feeding mechanism, so that the cooling hole of the sample corresponds to the cooling hole in the core pipeline of the push rod 5 of the feeding mechanism The positions are consistent, and the thermocouple connected to the temperature recorder 6 is inserted into the sample temperature measurement holes 9, 12, 13, 16 through the pipeline at the center of the push rod 5 of the feed mechanism. Start the heating furnace 1, set the temperature o...

Embodiment 2

[0053] The difference between this example and example 1 is that the outer dimension of the thermal barrier coating sample is Φ48×120mm, three temperature measuring holes are set for the sample, the size of the temperature measuring holes is Φ8×80mm, and the distance between the center of the temperature measuring hole and the center of the sample is They are 16mm, 28mm, 40mm in turn, and the positions of the temperature measuring holes are respectively according to figure 2 The position distribution of temperature measuring holes 12, 13, 16.

Embodiment 3

[0055] The difference between this example and Example 1 is that the temperature of the heating furnace 1 is set to 1200°C, and the sample 4 stays in the heating furnace 1 for a set time of 10s; Cooling of the coated surface of the sample 4 by the cooling device 2 on the coated surface of the sample.

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Abstract

The invention relates to a device and a method in the testing technical field, in particular to a synchronization testing device and a testing method of thermal barrier performance and thermal shock performance of a thermal barrier coating. The method enables the thermal barrier performance and the thermal shock performance of the thermal barrier coating to be obtained simultaneously and temperature change of a test sample in a thermal shock performance testing process to be recorded in detail, and facilitates deep analysis of the thermal shock failure mechanism of the test sample. According to the testing method, heating and cooling methods of the test sample can be determined as needed, and therefore serving conditions of a thermal barrier coating component can be simulated close to reality, quality of the thermal barrier coating can be tested accurately, the service life of the thermal barrier coating can be estimated accurately, and further the spraying effect of the serving component under a high-temperature working condition can be effectively estimated.

Description

technical field [0001] The invention relates to a device and a test method in the technical field of testing, in particular to a device for synchronously testing thermal barrier performance and thermal shock performance of a thermal barrier coating and a test method thereof. Background technique [0002] Thermal barrier coatings are generally a coating system composed of a surface ceramic coating and an intermediate metal bonding layer. Using flame spraying, plasma spraying, electron beam physical vapor deposition and other technologies, thermal barrier coatings are prepared on the surface of high-temperature heating parts, and the excellent thermal barrier effect of thermal barrier coatings is used to protect the base material of the heating parts, thereby increasing the working temperature of the heating parts. Thermal barrier coating technology is widely used in aerospace, gas power generation and other fields. At present, the application of thermal barrier coating techno...

Claims

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Application Information

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IPC IPC(8): G01N25/00
Inventor 陈东褚作明蔡卫东范广宏颜昌海金康王晓辉
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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