Efficient thermal shock joint performance test device for blade coating layer of gas turbine

Abstract

The invention discloses an efficient thermal shock joint performance test device for a blade coating layer of a gas turbine. The efficient thermal shock joint performance test device comprises a high-temperature electric furnace system, a cooling water system, an air cooling system, a test piece placing device and a control system, wherein the test piece placing device comprises a test piece basket arranged on a traveling crane mechanism and a test piece placing seat; the test piece basket moves between the high-temperature electric furnace system and the cooling system in a reciprocating manner through the traveling crane mechanism; the test piece placing seat moves between the high-temperature electric furnace system and the air cooling system in a reciprocating manner through the traveling crane system. The efficient thermal shock joint performance test device can detect the thermal impact resistance of a test piece under three conditions of water cooling, natural cooling and forced air cooling so as to meet different experiment requirements, and the experiment efficiency is greatly improved. In the experiment process, the heating time and the cooling time can be set; the two experiment modes of natural cooling and forced air cooling are fully automatic, so that the thermal impact experiment can be automatically carried out, and the experiment times are recorded; the temperature of cooling water can be set through temperature control equipment, so that the water temperature is kept at a certain value, and more accurate experiment data are acquired.

Description

technical field [0001] The invention relates to thermal shock combined performance testing equipment for thermal barrier coatings, in particular to a combined testing device for high-efficiency thermal shock performance of thermal barrier coatings for gas turbine blades. Background technique [0002] With the development of gas turbines toward high inlet temperatures, the temperature requirements for hot-end components are getting higher and higher, reaching the limit of superalloys and single crystal materials. They are in harsh environments such as high-temperature oxidation and high-temperature gas flow erosion, and can withstand temperatures as high as 1100 ° C, which has exceeded the limit temperature of 1075 ° C for high-temperature nickel alloys. The thermal barrier coating prepared by combining the high strength and toughness of metal with the high temperature resistance of ceramics can greatly improve the above problems. [0003] Thermal barrier coating (TBC) is cu...

AI Technical Summary

Problems solved by technology

However, at present, the performance of the test piece can only be judged by observing the microstructure by metallography, and there is a lack of professional equipment for testing the thermal performance of the test piece.

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