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Degradation Estimation of 2.25CR-1Mo Steel by Barkhausen Noise Method

[+] Author Affiliations
Youn-Ho Cho

Pusan National University, Pusan, Korea

Ik-Keun Park

Seoul National University of Technology, Seoul, Korea

Paper No. PVP2004-2842, pp. 235-241; 7 pages
doi:10.1115/PVP2004-2842
From:
  • ASME/JSME 2004 Pressure Vessels and Piping Conference
  • Recent Advances in Nondestructive Evaluation Techniques for Material Science and Industries
  • San Diego, California, USA, July 25–29, 2004
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4679-2
  • Copyright © 2004 by ASME

abstract

In this study, various NDE parameters of the Barkhausen noise method, such as MPA (Maximum Peak Amplitude), RMS, IABNS (Internal Area of Barkhausen Noise on Signal) and average amplitude of frequency spectrum are investigated and correlated with thermal damage level of 2.25Cr-1.0Mo steel using wavelet analysis. Those parameters tend to increase while thermal degradation proceeds. It also turns out that the wavelet technique can help to reduce experimental false calls in data analysis.

Copyright © 2004 by ASME
Topics: Steel , Noise (Sound)

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