Non-destructive determination of residual stress state in steel weldments by Magnetic Barkhausen Noise technique

Yelbay, H. Ilker; Çam, İbrahim; Gür, C. Hakan

doi:10.1016/j.ndteint.2009.08.003

Cited by 104 publications

(26 citation statements)

References 7 publications

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“…The comparison of results with those from X-ray diffraction showed a good agreement. Similar good results were achieved by measurements performed on other types of steels such as API X65 [62], API 5 L X70 [63], AS1548-7-460R [64], structural steel [65] and CrMo steel [66]. As pointed out by many investigators who examined welds of different steels, BN technique requires a precise calibration procedure in all zones, which have a noticeably different microstructure, namely each zone should be separately considered for calibration [59,60,61,63].…”

Section: Nondestructive Techniques 31 Barkhausen Noise Methodssupporting

confidence: 70%

Experimental Techniques to Investigate Residual Stress in Joints

Montanari¹,

Fava²,

Barbieri³

2018

Residual Stress Analysis on Welded Joints by Means of Numerical Simulation and Experiments

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Residual stress arising from welding processes is matter of great concern in industrial practice since it can affect geometry, mechanical behavior and corrosion resistance of components. In order to evaluate residual stress in welded joints and optimize postwelding heat treatments, a lot of work has been devoted to the improvement of measurement methods with increasing sensitivity and accuracy. The chapter presents and discusses some of the experimental techniques commonly used today to determine residual stress in welds and describes recent results and advancements. Destructive (sectioning, contour, hole-drilling, instrumented indentation) and nondestructive (Barkhausen noise, ultrasonic, X-ray and neutron diffraction) methods are illustrated to highlight the specific characteristics, advantages and drawbacks.

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Section: Nondestructive Techniques 31 Barkhausen Noise Methodssupporting

confidence: 70%

Experimental Techniques to Investigate Residual Stress in Joints

Montanari¹,

Fava²,

Barbieri³

2018

Residual Stress Analysis on Welded Joints by Means of Numerical Simulation and Experiments

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“…Therefore, for MBN to be effective in determining residual or applied stresses, different materials must be calibrated individually. Yelbay et al [114] in their study have concluded that calibration procedure is very important for accurate and reliable results. Each zone having remarkably different microstructure should be separately considered for calibration.…”

Section: Barkhausen Noise Methodsmentioning

confidence: 99%

Methods of measuring residual stresses in components

et al. 2012

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Residual stresses occur in many manufactured structures and components. Large number of investigations have been carried out to study this phenomenon and its effect on the mechanical characteristics of these components.Over the years, different methods have been developed to measure residual stress for different types of components in order to obtain reliable assessment. The various specific methods have evolved over several decades and their practical applications have greatly benefited from the development of complementary technologies, notably in material cutting, full-field deformation measurement techniques, numerical methods and computing power. These complementary technologies have stimulated advances not only in measurement accuracy and reliability, but also in range of application; much greater detail in residual stresses measurement is now available. This paper aims to classify the different residual stresses measurement methods and to provide an overview of some of the recent advances in this area to help researchers on selecting their techniques among destructive, semi destructive and non destructive techniques depends on their application and the availabilities of those techniques. For each method scope, physical limitation, advantages and disadvantages are summarized. In the end this paper indicates some promising directions for future developments.

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“…Detection and analysis of the BN have long since been employed for nondestructive sensing of many structural phenomena and physical effects in steels, including austenitic steels, exploiting the dependence of the significant parameters of the noise on specific macroscopic parameters of the material [10][11][12][13][14][15][16][17]. Actually, BN measurements do not provide absolute quantities and one generally looks at the variation of the BN properties with respect to a reference state.…”

Section: Properties and Measurement Of The Barkhausen Noisementioning

confidence: 99%

Magnetic Hysteresis and Barkausen Noise in Plastically Deformed Steel Sheets

Fiorillo

Küpferling

Appino

2017

Metals

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Abstract:The magnetic properties of steels are affected by plastic deformation, because the domain wall processes magnetoelastically interact with the dislocations and the residual stresses. The evolution of the magnetic hysteresis loop and its parameters with the type and degree of straining can thus provide a macroscopic signature of the underlying the mechanical and structural properties. Additional information can be achieved at a microscopic level through analysis of the Barkhausen noise, the signal generated by the stochastic flux variations associated with the discontinuous motion of the domain walls. Nondestructive methods for the structural evaluation of magnetic steels, devoted, in particular, to the investigation of work-hardening and state of internal stress following plastic straining, have therefore been developed in the literature, either through magnetic hysteresis or Barkhausen noise measurements. In this paper, we summarize significant results regarding the relationship between magnetic properties and plastic deformation in steel samples and the related experimental methods. Attention will be devoted, in particular, to the measurement and analysis of the Barkhausen noise spectral density and the way it relates to the macroscopic magnetic behavior and the structural properties.

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Non-destructive determination of residual stress state in steel weldments by Magnetic Barkhausen Noise technique

Cited by 104 publications

References 7 publications

Experimental Techniques to Investigate Residual Stress in Joints

Experimental Techniques to Investigate Residual Stress in Joints

Methods of measuring residual stresses in components

Magnetic Hysteresis and Barkausen Noise in Plastically Deformed Steel Sheets

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