Journal
ENGINEERING FAILURE ANALYSIS
Volume 16, Issue 8, Pages 2668-2697Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfailanal.2009.01.010
Keywords
Ni-base superalloys; Low cycle fatigue; High cycle fatigue; Fatigue crack propagation
Funding
- NASA
- AFOSR
- NATO
- GE
- SNECMA
- ONERA
- Centre des Materiaux (Ecole des Mines de Paris)
- French Minister of Industry
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Low cycle fatigue, high cycle fatigue, fatigue crack propagation and thermo-mechanical fatigue in Ni-base superalloys are reviewed in terms of fundamental deformation mechanisms, environmental effects, and interactions between environment and deformation mode. These factors are related to the chemical composition and underlying microstructure for all currently-used product forms (i.e. powder metallurgy, wrought, conventionally cast and single crystal). The basic principles that are developed are used to show how both intrinsic and extrinsic variables can be manipulated to control fatigue behaviour and as a guide for formulation of engineering life prediction models. (C) 2009 Elsevier Ltd. All rights reserved.
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