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Fatigue Crack Propagation in 2XXX Aluminium Alloys at 223K [chapter]

C. Gasqueres, C. Sarrazin-Baudoux, D. Dumont, J. Petit
Fracture of Nano and Engineering Materials and Structures  
The Fatigue Crack Growth behavior of new generation 2xxx aluminum alloys has been investigated at 223K in comparison to room temperature. Crack growth rates are not influenced by a cold and dry environment in the peak aged temper but are one order of magnitude slower in the naturally aged temper. Such retarded crack propagation is associated to a highly crystallographic crack path. Results are discussed on the basis of a model for intrinsic and environmentally assisted crack propagation.
doi:10.1007/1-4020-4972-2_494 fatcat:aneeekiuhnanjekamie4sz2e5m