A New Method on Low-Cycle Corrosion Fatigue of Pipelines Taking Strain as Parameter

Wen Jun Bi; Yong Zhu; Ying Jin

doi:10.4028/www.scientific.net/AMR.391-392.323

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 391-392A New Method on Low-Cycle Corrosion Fatigue of...

A New Method on Low-Cycle Corrosion Fatigue of Pipelines Taking Strain as Parameter

Abstract:

As for the more and more severe corrosion fatigue of pipelines in service and the results of the former analyzing means and tests, a new method was brought forward to study the low-cycle corrosion fatigue by using a large pure-bended sample (480 mm×38 mm×12 mm). The experimental samples were obtained from the gas-transmission spiral welded pipe (X65) used in the west-east gas transport project of China. The experiential formula about crack growth speed, , is established via the experimental results under two different environments of air and 3% NaCl solution, and the two constants of a and b were identified.

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Periodical:

Advanced Materials Research (Volumes 391-392)

Pages:

323-327

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.391-392.323

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Online since:

December 2011

Authors:

Wen Jun Bi, Yong Zhu, Ying Jin

Keywords:

Empirical Formula, Low-Cycle Corrosion Fatigue, Pure-Bended

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References

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