BOKU - Universität für Bodenkultur Wien - Forschungsinformationssystem
Gewählte Publikation:
Fonte, M.A., Stanzl-Tschegg, S.E., Holper, B., Tschegg, E.K., Vasudevan, A.K..
(2001):
The microstructure and environment influence on fatigue crack growth in 7049 aluminium alloy at different load ratios
International Journal of Fatigue, 23, 311-317
- Abstract:
- The role of microstructure and environmental influence on fatigue crack has been investigated on a high strength 7049 aluminium alloy, artificially aged to underaged (UA) and overaged (OA) microstructures with approximately the same yield strength properties, but differing in the mode of slip deformation. The UA alloy deforms by planar slip while the OA alloy by wavy slip. Crack growth measurements were performed at constant load ratios, between 0.8 and -1, in ambient air and vacuum. The influence of load ratio is discussed in terms of slip deformation mechanisms, microstructure, and the influence of environment using die two intrinsic parameters, DeltaK and K-max. (C) 2001 Elsevier Science Ltd. All rights reserved.
- Autor*innen der BOKU Wien:
- Tschegg Stefanie
- Find related publications in this database (Keywords)
- fatigue crack growth
- near-threshold fatigue
- K-max
- Delta K-th
- microstructure
- corrosion fatigue
- slip mode
- load ratio
- 7049 and 7075 alloys