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Acoustic Emission Testing of a Friction Stir Welding Aluminum Alloy Pressure Vessel

  • Jun Jiang
  • Cheng Ye
  • Zhongzheng Zhang
  • Yongliang Yu
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 218)

Abstract

To study the acoustic emission (AE) characteristics of an aluminum alloy pressure vessel manufactured by use of a friction stir welding (FSW) method, a tubular aluminum alloy pressure vessel containing an incomplete penetration defect was monitored by AE technology during hydraulic blasting testing. The characteristic parameter analysis method and fracture surface morphology observation were used to analyze the AE signal characteristics. The results show that the characteristic parameters of the AE amplitude, signal count, and energy jumped significantly when a large expansion of the defect occurred, and they stayed at a high level with the rise in pressure. AE technology can effectively monitor FSW aluminum alloy pressure vessel incomplete penetration defects and provide early warning. The results of this study are of great relevance to the detection of incomplete penetration defects in FSW aluminum alloy pressure vessels.

Keywords

Friction stir welding Aluminum alloy Acoustic emission Pressure vessel 

Notes

Acknowledgements

The authors thank the Jiangsu Ankao Company for providing the friction stir welded aluminum alloy pressure vessel used in this study, and for their related cooperation.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Jun Jiang
    • 1
  • Cheng Ye
    • 1
  • Zhongzheng Zhang
    • 1
  • Yongliang Yu
    • 1
  1. 1.Nanjing Boiler and Pressure Vessel Inspection and Research InstituteNanjingChina

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