Development of a magnetic sensor for detection of moderate carburization damages in heat-resistant HP-Nb tubes of steam reforming furnaces

Although carburization is not a typical occurrence in steam reforming furnaces, this localized damage can occur and its detection is an important issue. A magnetic sensor based in the magnetic flux density variation has been proposed for the carburization detection in samples coming from steam refor...

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Bibliographic Details
Published inJournal of materials research and technology Vol. 7; no. 3; pp. 371 - 375
Main Authors Lopez, Juan E.C., Arenas, Mónica P., Pacheco, Clara J., Queiroz, Fábio S., Eckstein, Carlos B., Nogueira, Laudemiro, Almeida, Luiz H. de, Rebello, João M.A., Pereira, Gabriela R.
Format Journal Article
LanguageEnglish
Published Elsevier Editora Ltda 01.07.2018
Elsevier
Subjects
Carburization
FEM simulation
Magnetic sensor
Steam Reformer tubes
Magnetic sensor
Steam Reformer tubes
FEM simulation
Carburization
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Summary:Although carburization is not a typical occurrence in steam reforming furnaces, this localized damage can occur and its detection is an important issue. A magnetic sensor based in the magnetic flux density variation has been proposed for the carburization detection in samples coming from steam reformer tubes. A three-dimensional model, by finite-element method (FEM), supported the optimization and development of a magnetic sensor for the detection of carburized samples. The experimental results indicated that the developed sensor, with high sensitivity, allowed to detect regions with moderate carburization damages.
ISSN:2238-7854
DOI:10.1016/j.jmrt.2018.06.007