{"title":"A magnetic head-based eddy current array for defect detection in ferromagnetic steels","authors":"Erlong Li , Weixiao Guo , Xiong Cao , Junzhen Zhu","doi":"10.1016/j.sna.2024.115862","DOIUrl":null,"url":null,"abstract":"<div><p>Defects on the surface and subsurface of the ferromagnetic steels can easily lead to structural failures. Eddy current testing is one of the most popular techniques for defect detection. In this paper, the direct current (DC) magnetization and a magnetic head-based eddy current array (MHECA) are integrated to propose the DCMHECA technique. This method can address the low testing efficiency of single probe testing and the channel multiplexing of array testing, and meanwhile detect deep surface and subsurface defects. The experimental results verify that the proposed DCMHECA can be used to locate rectangular and hole defects and quantify their depths with little channel interferences, which are indicated by low difference rates.</p></div>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":5.4000,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Energy Materials","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0924424724008562","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Defects on the surface and subsurface of the ferromagnetic steels can easily lead to structural failures. Eddy current testing is one of the most popular techniques for defect detection. In this paper, the direct current (DC) magnetization and a magnetic head-based eddy current array (MHECA) are integrated to propose the DCMHECA technique. This method can address the low testing efficiency of single probe testing and the channel multiplexing of array testing, and meanwhile detect deep surface and subsurface defects. The experimental results verify that the proposed DCMHECA can be used to locate rectangular and hole defects and quantify their depths with little channel interferences, which are indicated by low difference rates.
期刊介绍：
ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.
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