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HomeMaterials Science ForumMaterials Science Forum Vol. 1035Failure Analysis of Tee in Shale Gas...

Failure Analysis of Tee in Shale Gas Transportation Platform

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Abstract:

The mains reasons for internal corrosion failure and cracking of the tee in shale gas transportation platform have been proposed based on macroscopic analysis, physical and chemical property test, metallographic examination, Scanning Electron Microscope analysis, X-ray spectroscopy analysis and service condition analysis. The results show that corrosion occurring in the inner wall of tee was caused by the combined impacts of CO₂ corrosion, sulfate-reducing bacteria (SRB) corrosion and erosion corrosion. The crack in the weld of the inner wall was mainly due to the Sulfate-reducing Bacteria Induced cracking.

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Functional and Functionally Structured Materials V

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Periodical:

Materials Science Forum (Volume 1035)

Pages:

439-446

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1035.439

Citation:

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Online since:

June 2021

Authors:

Nan Ji*, Jie Feng, Yan Long

Keywords:

Internal Corrosion, Stress Corrosion Cracking, Sulfate-Reducing Bacteria, Synergistic Action, Tee

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* - Corresponding Author

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