Research Article

Rare Earth Metal-Based Intermetallics Formation in Al–Cu–Mg and Al–Si–Cu–Mg Alloys: A Metallographic Study

Figure 12

(a) Backscattered electron image and distribution of Cu, Ti, and La in D0 + La + Ti alloy, (b) enlarged micrograph of circled area in (a), and (c) EDS spectrum corresponding to the gray phase marked X in (b). (Note the weak Cu and Si peaks in the gray phase.)