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Static and cyclic crack growth behavior of ultrafine-grained Al produced by different severe plastic deformation methods
Ist Teil von
Metallurgical and materials transactions. A, Physical metallurgy and materials science, 2007-09, Vol.38 (9), p.1926-1933
Ort / Verlag
New York, NY: Springer
Erscheinungsjahr
2007
Link zum Volltext
Quelle
Springer Nature - Complete Springer Journals
Beschreibungen/Notizen
Fracture-mechanics experiments were carried out on ultrafine-grained (UFG) samples of aluminum and two Al alloys to obtain the fracture behavior under static and cyclic loading. The UFG materials investigated show crack resistance behavior under static loading, which was confirmed by ductile fracture surfaces. Under cyclic load, the crack growth rate was described well by the ESACRACK model. The crack propagation results show no influence of the type of the severe plastic deformation method in the Paris region but more effect in the threshold region. [PUBLICATION ABSTRACT]