Monitoring the Directional Variations of Magnetic Barkhausen Emission in Ferritic Steel Sheets



Monitoring the development of properties in fresh cement paste and mortar by ultrasonic waves
Kasap Keskin, Özlem; Tokyay, Mustafa; Department of Civil Engineering (2009)
The determination and following up the development of properties during the fresh state and early ages of concrete are important in order to schedule the work and to obtain the desired properties in the hardened concrete. As the traditional methods such as Vicat and Penetrometer mostly depend on the experience of the operator and do not provide a continuous picture of the development of properties, reliable and objective non-destructive test methods are needed for the quality control of fresh concrete. The ...
Monitoring the Microstructural Evolution in Spheroidized Steels by Magnetic Barkhausen Noise Measurements
DAVUT, Kemal; Gür, Cemil Hakan (Springer Science and Business Media LLC, 2010-12-01)
The aim of this study is to monitor nondestructively the degree of spheroidization in steels by Magnetic Barkhausen Noise (MBN) method. Various series of specimens consisting of either lamellar pearlite or partially/completely spheroidized carbides were produced from AISI 1060 steel by appropriate heat treatments. All specimens were characterized by metallographic examinations, hardness and MBN measurements. The results show that MBN signals are very sensitive to the variations in the microstructure caused ...
Monitoring the microstructural changes during tempering of quenched SAE 5140 steel by magnetic barkhausen noise
Davut, Kemal; Gür, Cemil Hakan (Springer Science and Business Media LLC, 2007-12-01)
The aim of this work is to characterize the microstructures of quenched and tempered steels non-destructively by a diverse set of parameters of the Magnetic Barkhausen Noise method (MBN fingerprint, frequency spectra, pulse height distribution, root-mean-square, and total number of pulses). Identical specimens from a SAE 5140 steel bar were prepared. All specimens were austenitized at 860 degrees C for 30 minutes and water-quenched identically. The quenched specimens were then tempered at various temperatur...
Monitoring variation of surface residual stresses in shot peened steel components by the magnetic Barkhausen noise method
SAVAŞ, SERDAR; Gür, Cemil Hakan (2010-12-01)
Shot peening is a cold working process by which residual compressive stresses are induced in the surface and near-surface region to increase the fatigue strength and the resistance to stress corrosion cracking This study covers non-destructive evaluation of surface residual stresses in the shot peened steel components by the magnetic Barkhausen noise method For this purpose various sets of steel specimens were prepared by a controlled shot peening process with different intensities impact angles and coverag...
Monitoring of fuel consumption and aromatics formation in a kerosene spray flame as characterized by fluorescence spectroscopy
Allouis, Christophe Gerard; Apicella, B; Barbella, R; Beretta, F; Ciajolo, A; Tregrossi, A (2003-06-01)
The large presence of aromatic compounds in distillate fossil fuels should allow, in line of principle, to follow the fuel consumption and/or the presence of unburned fuel in a high temperature environment like a burner or the exhaust of combustion systems by exploiting the high fluorescence emission of aromatic fuel components. To this aim an UV-excited fluorescence source has to be used since the aromatic fuel components are strongly fluorescing in the UV region of the emission spectrum.
Citation Formats
C. H. Gür, “Monitoring the Directional Variations of Magnetic Barkhausen Emission in Ferritic Steel Sheets,” 2017, Accessed: 00, 2021. [Online]. Available: