Measurement of irradiation effects in a RPV steel by ball indentation technique and magnetic Barkhausen noise

1999 ◽  
Author(s):  
In-Sup Kim ◽  
Duck-Gun Park ◽  
Thak-Sang Byun ◽  
Jun-Hwa Hong
Keyword(s):  
Barkhausen Noise ◽  
Magnetic Barkhausen Noise ◽  
Irradiation Effects ◽  
Indentation Technique ◽  
Ball Indentation ◽  
Rpv Steel

Effect of microstructures on magnetic Barkhausen noise level in the weld HAZ of an RPV steel

1999 ◽  
Vol 196-197 ◽  
pp. 351-353 ◽  
Author(s):  
Joo-Hag Kim ◽  
Duck-Gun Park ◽  
Chi-Il Ok ◽  
Eui-Pak Yoon ◽  
Jun-Hwa Hong
Keyword(s):  
Noise Level ◽  
Barkhausen Noise ◽  
Magnetic Barkhausen Noise ◽  
Rpv Steel

scholarly journals Time-Response-Histogram-Based Feature of Magnetic Barkhausen Noise for Material Characterization Considering Influences of Grain and Grain Boundary under In Situ Tensile Test

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2350
Author(s):  
Jia Liu ◽  
Guiyun Tian ◽  
Bin Gao ◽  
Kun Zeng ◽  
Yongbing Xu ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Tensile Stress ◽  
Material Properties ◽  
Ferromagnetic Material ◽  
Silicon Steel ◽  
Time Response ◽  
Barkhausen Noise ◽  
Time Interval ◽  
Magnetic Barkhausen Noise

Stress is the crucial factor of ferromagnetic material failure origin. However, the nondestructive test methods to analyze the ferromagnetic material properties’ inhomogeneity on the microscopic scale with stress have not been obtained so far. In this study, magnetic Barkhausen noise (MBN) signals on different silicon steel sheet locations under in situ tensile tests were detected by a high-spatial-resolution magnetic probe. The domain-wall (DW) motion, grain, and grain boundary were detected using a magneto-optical Kerr (MOKE) image. The time characteristic of DW motion and MBN signals on different locations was varied during elastic deformation. Therefore, a time-response histogram is proposed in this work to show different DW motions inside the grain and around the grain boundary under low tensile stress. In order to separate the variation of magnetic properties affected by the grain and grain boundary under low tensile stress corresponding to MBN excitation, time-division was carried out to extract the root-mean-square (RMS), mean, and peak in the optimized time interval. The time-response histogram of MBN evaluated the silicon steel sheet’s inhomogeneous material properties, and provided a theoretical and experimental reference for ferromagnetic material properties under stress.

Investigation on mechanical properties of P92 steel using ball indentation technique

2015 ◽  
Vol 624 ◽  
pp. 92-101 ◽  
Author(s):  
Dipika R. Barbadikar ◽  
A.R. Ballal ◽  
D.R. Peshwe ◽  
J. Ganeshkumar ◽  
K. Laha ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
P92 Steel ◽  
Indentation Technique ◽  
Ball Indentation

Schadenserfassung auf Radsatzlaufflächen/Defect detection on wheelset treads – Measurement of Magnetic Barkhausen Noise to detect varying workpiece conditions

2019 ◽  
Vol 109 (11-12) ◽  
pp. 811-815
Author(s):  
B. Denkena ◽  
B. Bergmann ◽  
H. Blech
Keyword(s):  
Acoustic Emission ◽  
Process Parameters ◽  
Defect Detection ◽  
Material Properties ◽  
Barkhausen Noise ◽  
Magnetic Barkhausen Noise ◽  
Optimal Process ◽  
Process Reliability

Unterschiedliche Belastungshistorien von Eisenbahnrädern führen zu Werkstoffveränderungen in der Lauffläche. Diese verursachen sporadisches Werkzeugversagen und verringern so die Prozesssicherheit. Die Messung der Material- und Prozesseigenschaften mit Barkhausenrauschen und Körperschall erlauben, individuelle Bearbeitungsparameter für jedes Exemplar festzulegen. Gezeigt werden die Herausforderungen in der Radsatzbearbeitung, und welche Informationen sich durch die Messtechniken gewinnen lassen.   Different load histories of train wheels lead to high variance of material properties on the running tread. Those cause unpredictable tool break and reduce process reliability. The measurement of magnetic Barkhausen noise and acoustic emission allow to gain information of the workpiece and the running process, to find optimal process parameters for the reconditioning of every individual wheel. Typical issues in train wheel machining and results of measurements are presented.

scholarly journals Stress measurement using magnetic Barkhausen noise and metal magnetic memory testing

2010 ◽  
Vol 21 (5) ◽  
pp. 055703 ◽  
Author(s):  
Ping Wang ◽  
Shougao Zhu ◽  
Gui Yun Tian ◽  
Haitao Wang ◽  
John Wilson ◽  
...  
Keyword(s):  
Stress Measurement ◽  
Barkhausen Noise ◽  
Magnetic Memory ◽  
Memory Testing ◽  
Metal Magnetic Memory ◽  
Magnetic Barkhausen Noise ◽  
Metal Magnetic Memory Testing
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