Non-destructive monitoring of corrosion extent in steel rope wires via Barkhausen noise emission

Neslušan, Miroslav; Bahleda, František; Minárik, Peter; Zgútová, Katarína; Jambor, Michal

doi:10.1016/j.jmmm.2019.04.017

Cited by 47 publications

(40 citation statements)

References 34 publications

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“…Over-stressing (or rupture) in the localized region could initiate an unexpected collapse. For this reason, several techniques have been developed for assessment of the corrosion or/and fatigue extent and the associated over-stressing [ 4 , 5 , 6 ]. Wang et al [ 7 ] developed the model approach for assessment of the corrosion extent in steel structures.…”

Section: Introductionmentioning

confidence: 99%

“…DWs in motion interfere with these lattice defects. For this reason, MBN is sensitive to the microstructural alterations since the MBN signal contains information about collisions of DWs with lattice defects such as dislocation cells [ 13 , 14 , 15 ], the size and distribution of precipitates [ 15 , 16 ], the density of grain boundaries, and/or non-ferromagnetic phases [ 6 , 17 ]. However, their superimposed contribution to the MBN is usually difficult to unwrap.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Magnetic Anisotropy and Non-Homogeneity of S235 Ship Structure Steel after Plastic Straining by the Use of Barkhausen Noise

et al. 2020

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This study investigates the microstructure, residual stress state, and the corresponding magnetic anisotropy of the ship structure samples made of S235 steel after uniaxial tensile deformation. A non-destructive magnetic technique based on Barkhausen noise is employed for fast and reliable monitoring of samples exposed to the variable degrees of plastic straining. It was found that the progressively developed plastic straining of the matrix results in an alteration of the easy axis of magnetization, stress anisotropy (expressed in residual stresses state) as well as the corresponding Barkhausen noise emission. Moreover, remarkable non-homogeneity can be found within the plastically strained region, especially when the localized plastic straining takes place.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of Magnetic Anisotropy and Non-Homogeneity of S235 Ship Structure Steel after Plastic Straining by the Use of Barkhausen Noise

et al. 2020

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“…The MBN technique is very fast, portable and sensitive against surface damage, expressed in such terms as the alteration of the microstructure as well as the stress state. The MBN technique has already been adapted for assessment of the corrosion extent in wires [25]. For these reasons, this study investigates the potential of the MBN technique for assessment of the prestressing in tendons.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Tendon Prestressing after Long-Term Service via the Barkhausen Noise Technique

et al. 2019

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This paper deals with the assessment of a real prestressed tendon by the use of Barkhausen noise emission. The tendon was obtained from a real highway bridge after 33 years in service. Barkhausen noise is studied as a function of the stress state, and the Barkhausen noise signals received directly from the tendon on the real bridge are compared with the Barkhausen noise signals received from the tendon during loading in the laboratory. Assessment of the prestressing is based on the analysis of the effective value of the Barkhausen noise signal as well as the position in which the Barkhausen noise envelopes attain a maximum.

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“…The patented wire has a high tensile strength of 1400 to 2000 MPa, an elongation of 2 to 4 % and modulus of elasticity of 190 GPa, see Table 4. The final wire strength depends on the chemical composition and the degree of cold drawing [17,18]. The patented wire is sensitive to mechanical surface damage, bends and high temperatures.…”

Section: Materials Propertiesmentioning

confidence: 99%

Anchorage System in Old Post-Tensioned Precast Bridges

Bujňáková

2020

Civil and Environmental Engineering

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The first precast post-tensioned bridges in Slovakia are approaching 60 years of their service life. Facing an aging infrastructure, it is necessary to assess their present structural condition and residual life expectancy. Different types and methods of anchorage system were developed and available for first post-tensioned bridges around the world. The reliability and functionality of anchorages contribute to the proper behaviour of post-tensioning system. The considerable effect of aggressive environment (frost, chloride salts, humidity) and environmental load (CO2) leads to corrosion of anchorages and prestressing steel with the risk of a sudden unexpected damage to bridge. The research work deals into finding more details of this structural part. During the demolition of damaged post-tensioned bridges built in 1960s several anchorages were removed and analysed. The material properties, size parameters and performed tensile tests of a wedge anchorage system are summarised in this paper. The findings from this study can be used as input parameters for numerical simulation and durability assessment of similar aged existing post-tensioned bridges.

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Non-destructive monitoring of corrosion extent in steel rope wires via Barkhausen noise emission

Cited by 47 publications

References 34 publications

Analysis of Magnetic Anisotropy and Non-Homogeneity of S235 Ship Structure Steel after Plastic Straining by the Use of Barkhausen Noise

Analysis of Magnetic Anisotropy and Non-Homogeneity of S235 Ship Structure Steel after Plastic Straining by the Use of Barkhausen Noise

Assessment of Tendon Prestressing after Long-Term Service via the Barkhausen Noise Technique

Anchorage System in Old Post-Tensioned Precast Bridges

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