Abstract
In this paper, predictions of creep crack initiation times and growth rates using the NSW-MOD model are compared with experimental data for the parent and weld metals of P91 at 600°C. For the weld metal, creep crack growth rates are found to be bounded by upper and lower bounds of the predictions, but creep crack initiation times are close to the upper bound. For the parent material, creep crack growth rates are bounded by upper and lower bounds of the predictions using the minimum creep rates, but creep crack initiation times are bounded by those using the average creep rates.
| Original language | English |
|---|---|
| Pages (from-to) | 125-136 |
| Number of pages | 12 |
| Journal | Strength, Fracture and Complexity |
| Volume | 9 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2015 May 20 |
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Keywords
- analytical analysis
- Creep crack growth rate
- creep crack initiation time
- modified NSW model
- P91 martensitic steel
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Condensed Matter Physics
Cite this
Han, J. J., Lee, H. S., Kim, Y-J., Kim, N. H., Kim, W. G., Lee, H. Y., & Jerng, D. W. (2015). Prediction of creep crack initiation and growth for P91 at 600°C using MOD-NSW model. Strength, Fracture and Complexity, 9(1), 125-136. https://doi.org/10.3233/SFC-150184