Engineering fracture mechanics, 2018-08, Vol.199, p.29-40
2018
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Details
- Autor(en) / Beteiligte
- Titel
- Fatigue life prediction of nickel-based GH4169 alloy on the basis of a multi-scale crack propagation approach
- Ist Teil von
- Engineering fracture mechanics, 2018-08, Vol.199, p.29-40
- Ort / Verlag
- New York: Elsevier Ltd
- Erscheinungsjahr
- 2018
- Quelle
- Elsevier ScienceDirect Journals
- Beschreibungen/Notizen
- This paper was concerned with an approach to predict fatigue life based on a multi-scale crack propagation model. The expressions of crack propagation rates in microstructurally small crack (MSC), physically small crack (PSC) and long crack (LC) stages were unified in the multi-scale crack propagation model. Its integral form presented a fatigue life prediction approach. The nickel-based GH4169 alloy was employed to validate the prediction capacity of present approach. The prediction results of lives of specimens with different initial defects sizes were compared with the experimental data.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0013-7944eISSN: 1873-7315DOI: 10.1016/j.engfracmech.2018.05.023Titel-ID: cdi_proquest_journals_2114216103
- Format
- –
- Schlagworte
- Alloys, Crack propagation, Cracks, Defects, Fatigue failure, Fatigue life, Fatigue life prediction, Fracture mechanics, Life prediction, Mathematical models, Microstructural dissimilitude, Microstructure, Multi-scale crack propagation, Nickel base alloys, Nickel-based alloy, Scale (ratio), Superalloys