Martensite morphology and volume fraction evaluation of dual-phase X70 steel using magnetic Barkhausen noise technique

Nebair, Hocine; Helifa, B.; Bensaid, Samir; Zidelmel, Sami; Lefkaier, Ibn Khaldoun

doi:10.1016/j.jmmm.2022.169397

Cited by 4 publications

(3 citation statements)

References 52 publications

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“…26 In other work, MBN as a function of the martensite morphologies and volume fractions of dual-phase steel was investigated as well in the mixed structure of ferrite−martensite phases. 27 These and other recent works demonstrate the capabilities that the MBN technique provides for the analysis of structure−property correlations in various steels and products made from them. Moreover, this method is also used to analyze magnetic characteristics in functional materials, for example, in soft magnetic alloy FeSiCuNbB 28 and magnetostrictive alloy FeGa.…”

Section: ■ Introductionmentioning

confidence: 59%

“…Lin et al studied the mechanism of surface cracking and the role of dislocation density of MBN in rail rolling contact fatigue . In other work, MBN as a function of the martensite morphologies and volume fractions of dual-phase steel was investigated as well in the mixed structure of ferrite–martensite phases . These and other recent works demonstrate the capabilities that the MBN technique provides for the analysis of structure–property correlations in various steels and products made from them.…”

Section: Introductionmentioning

confidence: 93%

See 1 more Smart Citation

Formation of Effective Non-ferromagnetic Barrier in Fe/MgO Soft Magnetic Composite

Bures,

Neslusan,

Faberova

et al. 2024

ACS Appl. Electron. Mater.

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Soft magnetic ferromagnetic/insulator composites are complex objects in terms of structure and magnetic properties. They depend on many different parameters, among which one of the main ones is the amount of insulator. In this work, the effect of MgO content on magnetization processes in Fe/MgO composites is studied in detail by using a wide combination of properties and structure analysis methods. Several series of samples with content steps up to 0.1 wt % were prepared using standard powder metallurgy operations such as dry mixing, cold pressing, and sintering. The study demonstrates that the evolution of Barkhausen noise with increasing MgO content is not systematic. The second phase acts as an effective barrier to magnetic interaction between neighboring Fe particles only after reaching a certain point, which was found to be about 0.9% wt. Some other properties (coercivity, permeability, elastic properties) also demonstrate nontrivial composition dependence. To reveal the causes of the observed phenomena, the structure of the composites was studied in detail, and it was shown that with an increase in the MgO content in the range of 0.8−1%, a change in the mechanisms of structure formation occurs, which, in turn, affects the properties. The presented results provide insights into developing advanced soft magnetic composites with an optimal combination of a ferromagnetic powder and an insulator.

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Section: ■ Introductionmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 93%

Formation of Effective Non-ferromagnetic Barrier in Fe/MgO Soft Magnetic Composite

Bures,

Neslusan,

Faberova

et al. 2024

ACS Appl. Electron. Mater.

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“…This can also be explained by the relationship between the coercivity field and mechanical hardness. When the martensite volume fraction decreases with the increases in the decarburization depth of the martensitic core samples, the coercive field decreases with the decrease in the mechanical hardness [ 19 ]. In addition, the H cm (blue line in Figure 9 b) obtained from the samples with pearlitic core showed a similar decrease with the increase in the large decarburization depth, but it exhibited a non-monotonous dependency at the beginning.…”

Section: Discussionmentioning

confidence: 99%

Surface Decarburization Depth Detection in Rods of 60Si2Mn Steel with Magnetic Barkhausen Noise Technique

Wang

Ding

et al. 2023

Sensors

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Magnetic Barkhausen noise (MBN), sensitive to the microstructure of materials, can be applied in the surface decarburization depth detection of ferromagnetic specimens. However, the effects of core microstructures on the determination results of decarburization depth have not been explored. In this study, MBN was employed to evaluate the magnetic properties of the decarburized 60Si2Mn spring steels with martensitic and pearlitic core microstructures. Spring steel samples were austenitized at different times to generate different decarburization depths. Seven magnetic features were extracted from the MBN butterfly profiles. We used the variation coefficient, linear correlation coefficient, and normalized sensitivity to discuss the influence of the core microstructures on these seven features. The different core microstructures led to a large difference in the ability of MBN features to characterize the decarburization layer depth. However, three features of MBN butterfly profiles demonstrated an approximately linear dependency (linear correlation coefficient > 94%) on surface decarburization depth and monotonically increased with the increase in depth in both core microstructures of spring steels.

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Hardness and Ferrite Grain Size Evaluation of X70 Steel Using Magnetic Barkhausen Noise Method

Nebair,

Zidelmel,

Helifa

et al. 2024

J Nondestruct Eval

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Martensite morphology and volume fraction evaluation of dual-phase X70 steel using magnetic Barkhausen noise technique

Cited by 4 publications

References 52 publications

Formation of Effective Non-ferromagnetic Barrier in Fe/MgO Soft Magnetic Composite

Formation of Effective Non-ferromagnetic Barrier in Fe/MgO Soft Magnetic Composite

Surface Decarburization Depth Detection in Rods of 60Si2Mn Steel with Magnetic Barkhausen Noise Technique

Hardness and Ferrite Grain Size Evaluation of X70 Steel Using Magnetic Barkhausen Noise Method

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