Failure Analysis of ERW Seam Weld Pipeline in Internal Pressure

Rui Wang; Dong Feng Li; Peng Yang; Jun Han; Xin Li Han

doi:10.4028/www.scientific.net/MSF.724.464

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HomeMaterials Science ForumMaterials Science Forum Vol. 724Failure Analysis of ERW Seam Weld Pipeline in...

Failure Analysis of ERW Seam Weld Pipeline in Internal Pressure

Abstract:

Fracture failure behavior of the electric resistance welding (ERW) seam weld of Φ355.6×10.3 mm L360 in high internal pressure was investigated in this paper. The mechanical, metallurgical and fractographic characteristics were studied to clarify the reason of fracture failure for the ERW seam weld. The experimental results showed that the impurity and flaw of weld area were the main factors for the failure of ERW seam weld in high internal pressure. The impurity and flaw in welds had great effects on the mechanical characteristics of ERW. The approaches to ensure the integrity of the pipeline in service were proposed.

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Periodical:

Materials Science Forum (Volume 724)

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464-467

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.724.464

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Online since:

June 2012

Authors:

Rui Wang, Dong Feng Li, Peng Yang, Jun Han, Xin Li Han

Keywords:

ERW Seam Weld, Failure Analysis, Fracture, Internal Pressure

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