To study acoustic emission (AE) signals characteristics of stress corrosion crack (SCC) on in-service pressure vessels. The small pressure vessel with a pre-crack, filled 6% ferric chloride solution was monitored by AE technique. Conventional parameter-based approach and signal-based analysis were combined to deal with recorded AE signals, and micromorphologic observation and ray detection were performed for further verification. The results showed that the Kaiser effect of Q345R material is obvious, AE hits rate and amplitude & energy of the first pressure cycling was higher. Signal band is mainly distributed in 40 ∼ 400 KHz, Signal waveform was mainly composed of high -frequency (>100 KHz) expansion wave with larger amplitude & energy and low-frequency (<100 KHz) flexural wave with lesser amplitude & energy. The research results have a certain reference value for AE test on SCC for practical in-service pressure vessel.
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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
Experimental Research of AE Inspection on Stress Corrosion Crack for Small Pressure Vessel
Zhongzheng Zhang,
Zhongzheng Zhang
Nanjing Boiler & Pressure Vessel Supervision & Inspection Research Institute, Nanjing, Jiangsu, China
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Hua Liang,
Hua Liang
Nanjing Boiler & Pressure Vessel Supervision & Inspection Research Institute, Nanjing, Jiangsu, China
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Cheng Ye,
Cheng Ye
Nanjing Boiler & Pressure Vessel Supervision & Inspection Research Institute, Nanjing, Jiangsu, China
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Wensheng Cai,
Wensheng Cai
Nanjing Boiler & Pressure Vessel Supervision & Inspection Research Institute, Nanjing, Jiangsu, China
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Jun Jiang
Jun Jiang
Nanjing Boiler & Pressure Vessel Supervision & Inspection Research Institute, Nanjing, Jiangsu, China
Search for other works by this author on:
Zhongzheng Zhang
Nanjing Boiler & Pressure Vessel Supervision & Inspection Research Institute, Nanjing, Jiangsu, China
Hua Liang
Nanjing Boiler & Pressure Vessel Supervision & Inspection Research Institute, Nanjing, Jiangsu, China
Cheng Ye
Nanjing Boiler & Pressure Vessel Supervision & Inspection Research Institute, Nanjing, Jiangsu, China
Wensheng Cai
Nanjing Boiler & Pressure Vessel Supervision & Inspection Research Institute, Nanjing, Jiangsu, China
Jun Jiang
Nanjing Boiler & Pressure Vessel Supervision & Inspection Research Institute, Nanjing, Jiangsu, China
Paper No:
PVP2013-97244, V01BT01A011; 7 pages
Published Online:
January 17, 2014
Citation
Zhang, Z, Liang, H, Ye, C, Cai, W, & Jiang, J. "Experimental Research of AE Inspection on Stress Corrosion Crack for Small Pressure Vessel." Proceedings of the ASME 2013 Pressure Vessels and Piping Conference. Volume 1B: Codes and Standards. Paris, France. July 14–18, 2013. V01BT01A011. ASME. https://doi.org/10.1115/PVP2013-97244
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