多層配管の非破壊評価へのレーザ超音波法の適用に関する検討

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  • Non-Destructive Evaluation of Multi-Layer Piping Using Laser Ultrasonic Technique

抄録

  Recently, multilayer piping has been used widely. Multilayer piping has excellent durability and corrosion resistance. An effective means for quality maintenance of multilayer piping is the laser ultrasonic technique for checking the state of adhesion of the vinyl chloride layer and the steel layer of multilayer piping. The wave is refracted at the interface between the steel layer and the vinyl chloride layer based on the wave motion principle. The arrival time of the reflection wave was calculated and confirmed by measurements. If measurement of piping under high temperature becomes possible, the effectiveness of the non-destructive testing technology by the laser ultrasonic technique can be expected, enabling the production of higher reliability and quality of multilayer piping.<br>

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 76 (3), 177-181, 2012

    公益社団法人 日本金属学会

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