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Engineering Critical Assessment of nickel-based clad pipeline girth welds in a wet H2S-containing environment.
- Source :
-
Engineering Fracture Mechanics . Jul2016, Vol. 160, p42-51. 10p. - Publication Year :
- 2016
-
Abstract
- Specimens from nickel-based clad pipeline girth welds were tested in H 2 S solution. The results of the fatigue crack growth rate curve at higher Δ K values were about 4 times higher than the in-air values. The rate at 180 °C was generally higher than the in-air data for flaw assessments found in the British Standard BS7910 by a factor of up to 3 times. From the analyses of the diffusible hydrogen, the backing steel of such pipelines are predominantly protected from the sour environment by the corrosion-resistant alloy clad layer. The results from this study are relevant for desktop Engineering Critical Assessment of girth welds of such pipelines. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00137944
- Volume :
- 160
- Database :
- Academic Search Index
- Journal :
- Engineering Fracture Mechanics
- Publication Type :
- Academic Journal
- Accession number :
- 115368224
- Full Text :
- https://doi.org/10.1016/j.engfracmech.2016.04.001