In order to study acoustic emission (AE) signals waveform characteristics of pitting corrosion on 304 stainless steel under higher temperature than lower one, Pitting corrosion process on 304 stainless steel in 6% ferric chloride solution at 70°C was monitored by AE technology. Wavelet transform and mode acoustic emission technology were combined to deal with recorded AE signals, and micromorphologic observation was performed for further verification. The results showed that signal waveform was mainly composed of low-frequency (<100KHz) flexural wave with larger amplitude & energy and high-frequency (>100KHz) expansion wave with lesser amplitude & energy. The research results have some certain significance for AE monitoring of pitting corrosion on 304 stainless steel.
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ASME 2013 Pressure Vessels and Piping Conference
July 14–18, 2013
Paris, France
Conference Sponsors:
- Pressure Vessels and Piping Division
- Nondestructive Evaluation Engineering Division
ISBN:
978-0-7918-5564-5
PROCEEDINGS PAPER
Research on Acoustic Emission Signals Characteristics of Pitting Corrosion on 304 Stainless Steel
Zhongzheng Zhang,
Zhongzheng Zhang
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
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Hua Liang,
Hua Liang
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
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Cheng Ye,
Cheng Ye
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
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Wensheng Cai,
Wensheng Cai
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
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Jun Jiang,
Jun Jiang
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
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Qiang Cui
Qiang Cui
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
Search for other works by this author on:
Zhongzheng Zhang
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
Hua Liang
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
Cheng Ye
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
Wensheng Cai
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
Jun Jiang
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
Qiang Cui
Nanjing Boiler & Pressure Vessel Supervision and Inspection Institute, Nanjing, China
Paper No:
PVP2013-97302, V01BT01A013; 8 pages
Published Online:
January 17, 2014
Citation
Zhang, Z, Liang, H, Ye, C, Cai, W, Jiang, J, & Cui, Q. "Research on Acoustic Emission Signals Characteristics of Pitting Corrosion on 304 Stainless Steel." Proceedings of the ASME 2013 Pressure Vessels and Piping Conference. Volume 1B: Codes and Standards. Paris, France. July 14–18, 2013. V01BT01A013. ASME. https://doi.org/10.1115/PVP2013-97302
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