On the effect of precipitates on the cyclic deformation behavior of an Al–Mg–Si alloy

Fatigue is one of the major failure modes of structural materials. While the effects of strengthening precipitates on the mechanical properties of heat treatable aluminum alloys during forming operations are well-studied, only little is known about the related mechanisms during fatigue. We study the influence of precipitates during low cycle fatigue of an Al-Si-Mg alloy by mechanical testing and microstructure characterisation using (scanning)...