Santa-aho, S., Sorsa, A., Honkanen, M. et al. Detailed Barkhausen noise and microscopy characterization of Jominy end-quench test sample of CF53 steel. J Mater Sci 55, 4896–4909 (2020) doi:10.1007/s10853-019-04284-z
Detailed Barkhausen noise and microscopy characterization of Jominy end-quench test sample of CF53 steel
|Author:||Santa-aho, Suvi1; Sorsa, Aki2; Honkanen, Mari3;|
1Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 589, 33014, Tampere, Finland
2Faculty of Technology, Control Engineering, University of Oulu, P.O. Box 4300, 90014, Oulu, Finland
3Tampere Microscopy Center, Tampere University, P.O. Box 692, 33014, Tampere, Finland
|Online Access:||PDF Full Text (PDF, 2 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe202001152225
|Publish Date:|| 2020-01-15
Jominy end-quench test samples from CF53 were used for studying the relationship of microstructural changes with the magnetic Barkhausen noise (BN) response. As the Barkhausen noise method is sensitive to both stress and microstructural state, it can be applied for material characterization. This study presents observations from BN measurements with different sensors and from different locations (as-quenched and ground) on the sample surface. Detailed microstructural characterization with a scanning electron microscope and a transmission electron microscope was carried out to correlate the BN responses with the microstructural features. In addition, residual stresses were measured by X-ray diffraction. The results indicate that the ground surface displayed mainly the effect of the grinding compressive stress state, while the as-quenched surface had variations due to higher microstructure sensitivity. An important finding of the results was that the sensitivity of BN to different surface conditions varied: The BN response in the ground area was mainly generated by both the residual stress and the microstructural effect, whereas for the as-quenched surface the microstructural effect was more evident.
Journal of materials science
|Pages:||4896 - 4909|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
216 Materials engineering
The research was financially supported by the Academy of Finland project.
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