0
Chapter 35
Fatigue Crack Growth of Pipeline Steels in Gaseous Hydrogen- Predictive Model Calibrated to API-5L X52

Excerpt

A phenomenological fatigue crack growth (FCG) model was previously proposed to predict the FCG of API-5L X100 steel in high-pressure gaseous hydrogen [1]. The model presumes that total FCG is a summation of a “pure” fatigue component and a hydrogen-assisted (HA) component. The hydrogen-assisted fatigue component is further divided into two regimes. The first regime is dominated by the stress-assisted hydrogen concentration within the fatigue process zone, while the second regime is controlled by the far-field steady-state hydrogen concentration. This work outlines the process entailed in model calibration to X52 steel in gaseous hydrogen. Model applicability to multiple materials, having differing microstructure and characteristic length scales, will be discussed in light of the model parameters and potential FCG mechanisms.

  • Introduction
  • Materials/Experimental Procedure
  • Test Results
  • Model Calibration
  • Discussion
  • Conclusions
  • Acknowledgements
  • References

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In