High-Temperature Tensile Fractography of Zr-, Ni-, and Mn-Containing Al-Si-Cu-Mg Cast Alloys

Figure 10

(a) BSE image of T6-treated M3S alloy after stabilization at 250°C for 200 hours showing the dimple structure (upper right corner), coarsened precipitates and a cracked star-like Al-Si-Ti-Zr and sludge particles and (b), (c) EDS spectra corresponding to the Al-Si-Ti-Zr and sludge particles shown in (a).

(a)

(b)

(c)