NDLI: Experimental Research of AE Inspection on Stress Corrosion Crack for Small Pressure Vessel

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Zhang, Zhongzheng Liang, Hua Ye, Cheng Cai, Wensheng Jiang, Jun
Copyright Year	2013
Abstract	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.
Sponsorship	Pressure Vessels and Piping Division Nondestructive Evaluation Engineering Division
File Format	PDF
ISBN	9780791855645
DOI	10.1115/PVP2013-97244
Volume Number	Volume 1B: Codes and Standards
Conference Proceedings	ASME 2013 Pressure Vessels and Piping Conference
Language	English
Publisher Date	2013-07-14
Publisher Place	Paris, France
Access Restriction	Subscribed
Subject Keyword	Acoustic emission Stress corrosion crack Small pressure vessel Monitoring Inspection Stress corrosion cracking Pressure vessels Acoustic emissions
Content Type	Text
Resource Type	Article

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