Abstract
A methodology of creating defects in a cast aluminum alloy, using femtosecond pulsed lasers has been described. Small fatigue crack growth behavior of cracks initiated from these defects was examined as a function of temperature. The variation in growth rate with temperature was related to the extent of crack-tip plasticity.
Original language | English |
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Pages (from-to) | 1109-1114 |
Number of pages | 6 |
Journal | Scripta Materialia |
Volume | 50 |
Issue number | 8 |
DOIs | |
State | Published - Apr 2004 |
Externally published | Yes |
Funding
Financial support provided by Ford Motor Company and National Science Foundation (NSF Grant no. DMR 021 1067) is gratefully acknowledged. The authors would like to thank Christopher J. Torbet (University of Michigan) for technical assistance and to Michael J. Caton (US-AFRL, Dayton, OH) for providing the long crack data.
Keywords
- Aluminum alloys
- Fatigue
- Laser machining
- Plastic deformation