Evaluation of Ferromagnetic Steel Hardness Based on an Analysis of the Barkhausen Noise Number of Events

Evaluation of Ferromagnetic Steel Hardness Based on an Analysis of the Barkhausen Noise Number of Events

Measurements are carried out of the Barkhausen noise (BN) and hardness on specimens where changes in hardness were obtained due to strain hardening (S235 and DC01 steels) and due to thermochemical treatment (AMS 6414 steel). A method is presented of processing the recorded BN signal to extract diagn...

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Veröffentlicht in:Materials 2020-04, Vol.13 (9), p.2059, Article 2059
Hauptverfasser: Roskosz, Maciej, Fryczowski, Krzysztof, Schabowicz, Krzysztof
Format: Artikel
Sprache:eng
Schlagworte:
Algorithms
Barkhausen effect
Chemistry
Chemistry, Physical
Contact angle
Correlation
Diagnostic systems
Ferromagnetism
Hardness
Magnetic fields
Materials Science
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Methods
Noise
Physical Sciences
Physics
Physics, Applied
Physics, Condensed Matter
Science & Technology
Signal processing
Strain hardening
Technology
Wavelet transforms
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Zusammenfassung:Measurements are carried out of the Barkhausen noise (BN) and hardness on specimens where changes in hardness were obtained due to strain hardening (S235 and DC01 steels) and due to thermochemical treatment (AMS 6414 steel). A method is presented of processing the recorded BN signal to extract diagnostic information. The BN number of events is selected as the signal characteristic property to develop relevant correlations. A new methodology is presented for the development of correlations between the Barkhausen noise number of events and hardness. A possibility is indicated of developing correlations with a high R2 determination coefficient. The method limitations are specified.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma13092059