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Bulk ultrasonic NDE of metallic components at high temperature using magnetostrictive transducers
Published in American Institute of Physics Inc.
2017
Volume: 1806
   
Abstract
Online ultrasonic NDE at high-temperature is of much interest to the power, process and automotive industries in view of possible savings in downtime. This paper describes a novel approach to developing ultrasonic transducers capable of high-temperature in-situ operation using the principle of magnetostriction. Preliminary design from previous research by the authors [1] is extended for operation at 1 MHz, and at elevated temperatures by amorphous metallic strips as the magnetostrictive core. Ultrasonic signals in pulse-echo mode are experimentally obtained from the ultrasonic transducer thus developed, in a simulated high-temperature environment of 350°C for 10 hours. Advantages and challenges for practical deployment of this approach are discussed. © 2017 Author(s).
About the journal
JournalData powered by TypesetAIP Conference Proceedings
PublisherData powered by TypesetAmerican Institute of Physics Inc.
ISSN0094243X
Open AccessYes