Journal article
Crack growth micro-mechanisms in the IN718 alloy under the combined influence of fatigue, creep and oxidation
- Abstract:
- The objective of the present study is to review the different phenomena responsible for crack growth in the IN718 nickel-base superalloy under the combination of fatigue, creep and oxidation. We review the descriptions of the micro-mechanisms found in the literature, with a special emphasis on the time-dependent effects. The changes in the microscopic appearance of fracture surfaces due to the variations in the temperature, frequency, dwell time, microstructure and partial pressure of oxygen are considered. Elucidation of these microscopic aspects of crack growth requires establishing a connection with macroscopic conditions and parameters of crack growth, and these topics are touched upon in the present review insofar as it is necessary. The review allows the identification of important parameters that control component durability, and need to be included in fatigue crack growth modelling for the development of better predictive lifing assessments.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
- Publisher:
- Elsevier
- Journal:
- International Journal of Fatigue More from this journal
- Volume:
- 31
- Issue:
- 11-12
- Pages:
- 1966-1977
- Publication date:
- 2009-02-12
- Acceptance date:
- 2009-01-30
- DOI:
- ISSN:
-
0142-1123
- Language:
-
English
- Keywords:
- Subjects:
- UUID:
-
uuid:a098b94a-4ab8-43a3-baae-2ce3ed53fd92
- Local pid:
-
ora:5290
- Deposit date:
-
2011-04-21
Terms of use
- Copyright holder:
- Elsevier Ltd
- Copyright date:
- 2009
- Notes:
- The full-text of this article is not available in ORA, but you may be able to access the article via the publisher copy link on this record page.
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