Mechanical Behavior of Open Cellular Materials at Ambient and Elevated Temperatures Mechanisms of Corrosion Fatigue Damage in Implant Materials Fatigue Deformation and Damage Mechanisms in Bimetal Fasteners

The goal of the present research is to develop a better understanding of the tensile response of open-cellular aluminum 6061 T6 alloy. Both tensile and compression samples of this metallic foam were tested under constant strain rate conditions at 293, 423, and 523 K. Scanning electron microscopy was performed on individual struts to assess the modes and mechanisms associated with fracture. Theoretical models are being evaluated and developed which predict the behavior of the open cell structure from the mechanical properties of the fully dense alloy. Funded by a grant from the Department of Energy in collaboration with Lawrence Livermore National Laboratory.