Taking the research and application of high-temperature acoustic non-destructive testing technology in the fields of aerospace,steel metallurgy,and special equipment in China as the main line,this paper analyzes the huge demand for high-temperature acoustic testing technology in promoting the preparation and research,the development of advanced high-temperature material,green and low-carbon production and industrial upgrad-ing in the iron and steel metallurgy industry,and the maintenance and safe operation of high-temperature pres-sure pipelines.This article introduces the progress made by domestic and foreign scholars in the technical meth-ods and instrument development of high-temperature acoustic testing,analyzes the advantages,disadvantages,and application scenarios of technologies such as piezoelectric ultrasound,electromagnetic ultrasound,laser ul-trasound,and laser electromagnetic ultrasound in high-temperature non-destructive testing,and summarizes the opportunities and challenges faced by high-temperature acoustic testing technology.
关键词
声学检测/高温无损检测/压电超声/电磁超声/激光超声
Key words
acoustic testing/high temperature non-destructive testing/piezoelectric ultrasound/electromag-netic ultrasound/laser ultrasound