Abstract
Based on the anisotropic crystallographic theory, a model of low cycle fatigue (LCF) life time of a nickel-base single crystal in a multiaxial stress state is proposed. The model indicates that LCF life time has a power relationship to total shear strain of modified octahedral slip. The detail distributions of stress and strain in a hellow cylinder specimen under tension-torsion LCF loadings are analyzed in detail. The LCF life time model has been confirmed successfully using the results of tension-torsion LCF tests of CMSX-2 NI-base single crystal superalloy.
| Original language | English |
|---|---|
| Pages (from-to) | 31 |
| Number of pages | 1 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 29 |
| Issue number | 1 |
| State | Published - 2000 |
Keywords
- Anisotropic crystallographic theory
- Life time
- Low cycle fatigue
- Nickel-base single crystal
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