文献类型：期刊文献

英文题名：Feasibility of using ultrasonic-based prediction for hydrogen embrittlement susceptibility of high-strength heat-resistant steel 2.25Cr-1Mo-0.25V

作者：Ye, Dongdong[1];Yin, Changdong[2];Xu, Zhou[2];Chen, Jianjun[3];Wu, Yiwen[3];Pan, Jiabao[1,4];Zeng, Guiling[2];Xu, Huachao[1];Li, Rui[1]

机构：[1]Anhui Polytech Univ, Sch Artificial Intelligence, Wuhu 241000, Peoples R China;[2]Wuhu Inst Technol, Sch Elect & Automation, Wuhu 241006, Peoples R China;[3]East China Univ Sci & Technol, Sch Mech & Power Engn, Key Lab Safety Sci Pressurized Syst, Minist Educ, Shanghai 200237, Peoples R China;[4]Nanjing Univ Aeronaut & Astronaut, Natl Key Lab Sci & Technol Helicopter Transmiss, Nanjing 210016, Peoples R China

年份：2022

卷号：196

外文期刊名：MEASUREMENT

收录：;EI(收录号：20221912083734);WOS:【SCI-EXPANDED(收录号:WOS:000795000800004)】；

基金：This work was supported by the National Natural Science Foundation of China (52005004) , Natural Science Research Project of Wuhu Insti-tute of Technology (wzyzr202218, wzyzr202219) , the Scientific Research Starting Foundation of Anhui Polytechnic University of China (2021YQQ029) , National Basic Research Program of China (2015CB057602) , Key projects of Natural Science Research of Univer-sities in Anhui Province (KJ2021A1327) .

语种：英文

外文关键词：Hydrogen embrittlement; Electrochemical hydrogen charging; Pulse echo technique; Signal reconstruction; Ultrasonic characterization

摘要：Nondestructive evaluation for the mechanical properties loss of equipment materials serviced in the hydrogen environment is particularly vital for monitoring the equipment operating conditions. In this study, the quanti-tative relationship between the introduced hydrogen content and the mechanical property degradation of 2.25Cr-1Mo-0.25V steel was investigated using electrochemical hydrogen charging technique and tensile testing, and a nondestructive testing method based on pulse-echo ultrasonic measurement technique, combined with the results of mechanical assessment for hydrogen embrittlement (HE) susceptibility, was proposed to indirectly estimate the degree of hydrogen-induced plasticity loss of the steel. Moreover, signal reconstruction technique was also used to improve the measurement accuracy of ultrasonic echo signal. The results of the study showed that hydrogen present in the metal lattice intensifies the energy attenuation of ultrasonic echo, verifying the feasibility and validity of the measurement method in the effective online prediction of HE susceptibility of the tested steel.