Cleavage fracture in an Al-Li alloy 8090

摘要

Fracture that is associated with only small amounts of plastic flow and characterized by fracture planes parallel to low-index crystallographic planes is known as cleavage. In inert environments, cleavage is common for bcc and hep metals and alloys at low temperatures, but has also been observed for two fee if namely indium and rhodium [1-3]. For other fcc metals and alloys, cleavage can only occur in certain embrittling environments.