文献类型：期刊文献

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

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

机构：[1] Key Laboratory of Pressure Systems and Safety, Ministry of Education, School of Mechanical and Power Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230356017)

语种：英文

外文关键词：Acoustic wave velocity - Austenitic stainless steel - Errors - High temperature applications - Shear waves - Temperature measurement - Ultrasonic testing - Wave propagation

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 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 of the designed measurement method is less than 3%. The measurement error of this method was compared with that of the methods in the references. This method has the smallest error. Moreover, the mathematical models of transverse wave velocities in four materials are developed to quantify the effect of temperature on wave velocities. ? 2023, The Authors. All rights reserved.