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Authors: Zenghua Liu (Beijing University of Technology) , Xin Zhao (Beijing University of Technology) , Ning Pei (Beijing University of Technology) , Zhilin Huo (Beijing University of Technology) , Zhengyu Chen (Beijing University of Technology) , Cunfu He (Beijing University of Technology) , Bin Wu (Beijing University of Technology)
Existing nondestructive testing methods can be used separately to extract the acoustic parameters and the electromagnetic parameters. The number of the characterization parameters available for evaluating performance degradation of the ferromagnetic materials is limited. In this paper, a magneto-acoustic inspection technique was used to extract both ultrasonic and the pulsed eddy current signals. Multi-parameters can be obtained by a single magneto-acoustic combined inspection. The acoustic and electromagnetic parameters were used to comprehensively characterize the performance degradation of ferromagnetic materials. The results show that the magneto-acoustic combined inspection technique gives the advantages of both electromagnetic ultrasonic and eddy current testing. It can perform rapid and wide range testing, with improved sensitivity near-surface. Performance degradation of the ferromagnetic materials can be characterized through the multiple-parameters given by the magneto-acoustic compounding inspection technique, and both the sensitivity and robustness of electromagnetic ultrasonic testing can be improved.
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How to Cite: Liu, Z. . , Zhao, X. . , Pei, N. . , Huo, Z. . , Chen, Z. . , He, C. . & Wu, B. . (2019) “Performance degradation evaluation of ferromagnetic materials based on magneto-acoustic compounding inspection technique”, Review of Progress in Quantitative Nondestructive Evaluation.(0).