In-situ characterization method of bonding interface state under irradiation condition

Abstract

The invention relates to an in-situ characterization method of a bonding interface state, in particular to an in-situ characterization method of a bonding interface state under an irradiation condition. The invention aims to solve the technical problems that in the prior art, a radiographic inspection method depends on large special equipment such as a radiation source, the expansion of a servicesite is limited by space, the use convenience is insufficient, and when an ultrasonic flaw detection method is adopted, the requirement on personnel protection is high and the requirement on long-termuse is difficult to meet under an irradiation condition, and when structural dynamics analysis is adopted, the radiation tolerance of a sensor and an adhesive for bonding the sensor needs to be specially researched, and provides an in-situ characterization method for the bonding interface state under the irradiation condition. According to the method, nuclear power equipment related to irradiation conditions and the like are taken as main application objects, and non-contact, unmanned, simple, safe, reliable and timely bonding interface state characterization is realized through the steps ofbonding interface sampling, typical state calibration, service field non-contact in-situ detection and the like.

Description

technical field [0001] The invention relates to an in-situ characterization method of the bonding interface state, in particular to an in-situ characterization method of the bonding interface state under irradiation conditions. Background technique [0002] The adhesive structure is composed of different materials, which can simultaneously realize the functions of bearing, sealing, and heat protection in the field of engineering structures. The discontinuous feature of its geometric configuration and the strong discontinuity of its physical properties lead to high mechanical stress at the bonding interface and cause defects such as microcracks at the bonding interface. [0003] For the bonding interface of nuclear power pipeline structure and protective coating, the occurrence of defects such as microcracks will cause the deviation between the service state and the design state, and seriously affect the service reliability. Characterization has become the basic requirement ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that when the existing in-situ characterization method of the bonded interface state under irradiation conditions adopts the radiographic flaw detection method, it relies on large-scale special equipment such as radiation sources, the deployment of the service site is limited by space, and the convenience of use is insufficient; When using the flaw detection method, the requirements for personnel protection under irradiation conditions are high and it is difficult to meet the requirements for long-term use; when using structural dynamics analysis, the radiation resistance of the sensor and its adhesive for pasting needs to be specially studied. In Situ Characterization Method of Adhesive Interface State under Illumination Conditions