Effect of Casting Conditions on the Fracture Strength of Al-5 Mg Alloy Castings

Figure 1

The formation of a double oxide film defect. (a) Surface turbulence leads to a breaking wave on the metal surface, and (b) the two unwetted sides of the oxide films come into contact with each other as the bifilm is entrained into the bulk liquid metal [4].

(a)

(b)