Solidification Behavior and Microstructure of Al-7Si Alloys with Individual and Combined Additions of Sr and Yb

Figure 7

SEM-EDS image of Sr-rich intermetallic compounds in Al-7 wt.% Si alloy with 0.05 wt.% Sr. (a) SEM image of Sr-rich intermetallic compound; (b) EDS spectrum obtained from the Al-Si-Sr particle.

(a)

(b)