文献类型：期刊文献

英文题名：A Reliable Measurement Method for Transverse Wave Velocities in High Temperature Materials

作者：Jia, Jiuhong[1]; Yang, Dongxu[1]; Li, Xiang[1]; Gu, Yiqing[1]; Tu, Shantung[1]

机构：[1] Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240246132)

语种：英文

外文关键词：Acoustic wave velocity - Austenitic stainless steel - Errors - Shear waves - Temperature measurement - Ultrasonic testing - Ultrasonic transducers - Waveguides

摘要：Wave velocity is a critical factor in ultrasonic testing and is significantly affected by the temperature. To improve the measuring accuracy of wave velocity, a high-temperature test system is set up and a waveguide measurement method is designed. The transverse wave velocities in four regularly applied high-temperature materials for pressure vessels (i.e., 304 stainless steel, 316L stainless steel, Q235A steel, and 45 steel) are researched from 25 °C to 500 °C. The results show that the transverse wave velocities decrease linearly with increasing temperature. The maximum error using the waveguide measurement method is 2.11%. The measurement error of the waveguide measurement method is compared with those of the electromagnetic ultrasonic method and high-temperature transducer method. The waveguide method has the smallest error. Moreover, the mathematical models of transverse wave velocities in four materials are developed, which can be used to calculate transverse wave velocities at any temperatures. ? 2024, The Authors. All rights reserved.