Barkhausen noise- and eddy current-based measurements for online detection of deformation-induced martensite during flow forming of metastable austenitic steel AISI 304L

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dc.contributor.authorRozo Vasquez, Julian
dc.contributor.authorKanagarajah, Hanigah
dc.contributor.authorArian, Bahman
dc.contributor.authorKersting, Lukas
dc.contributor.authorHomberg, Werner
dc.contributor.authorTrächtler, Ansgar
dc.contributor.authorWalther, Frank
dc.date.accessioned2025-06-18T13:18:54Z
dc.date.available2025-06-18T13:18:54Z
dc.date.issued2024-12-07
dc.description.abstractThis paper deals with micromagnetic measurements for online detection of strain-induced α′-martensite during plastic deformation of metastable austenitic steel AISI 304L. The operating principles of the sensors are magnetic Barkhausen noise (MBN) and eddy currents (EC), which are suitable for detection of microstructure evolution due to formation of ferromagnetic phases. The focus of this study was put on the qualification of different micromagnetic techniques and different measurement systems under conditions similar to the real ones during production, which is crucial for implementation of a property-controlled flow forming process. The investigation was carried out on tubular specimens produced by flow forming, which have different content of α′-martensite. To characterize the sensitivity of the sensors, different contact conditions between sensors and workpieces were reproduced. MBN sensors are suitable for detecting amount of α′-martensite, but the measurements are affected by the surface roughness. This entails that the calibration models for MBN sensors must take account of these effects. EC sensors show a closer match with the amount of α′-martensite without having major affectation by other effects.en
dc.identifier.urihttp://hdl.handle.net/2003/43766
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-25540
dc.language.isoen
dc.relation.ispartofseriesEngineering reports; 7(1)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectBarkhausen noise analysisen
dc.subjectEddy currenten
dc.subjectFlow formingen
dc.subjectMicromagnetic testingen
dc.subjectNon-destructive testingen
dc.subjectPhase transformationen
dc.subject.ddc660
dc.subject.rswkBarkhausenrauschen
dc.subject.rswkWirbelstromverfahren
dc.subject.rswkFließlochformen
dc.subject.rswkMagnetische Werkstoffprüfung
dc.subject.rswkZerstörungsfreie Werkstoffprüfung
dc.subject.rswkPhasenumwandlung
dc.subject.rswkAustenitischer Stahl
dc.titleBarkhausen noise- and eddy current-based measurements for online detection of deformation-induced martensite during flow forming of metastable austenitic steel AISI 304Len
dc.typeText
dc.type.publicationtypeResearchArticle
dcterms.accessRightsopen access
eldorado.dnb.deposittrue
eldorado.secondarypublicationtrue
eldorado.secondarypublication.primarycitationRozo Vasquez, J., Kanagarajah, H., Arian, B., Kersting, L., Homberg, W., Trächtler, A., Walther, F., & Walther, F. (2025). Barkhausen noise‐ and eddy current‐based measurements for online detection of deformation‐induced martensite during flow forming of metastable austenitic steel <scp>AISI 304L</scp>. Engineering Reports, 7(1), Article e13070. https://doi.org/10.1002/eng2.13070
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1002/eng2.13070

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