The Role of Foaming Agent and Processing Route in Mechanical Performance of Fabricated Aluminum Foams

Figure 1

SEM micrographs of cell wall materials for Al-foams processed either with (a) CaCO₃ or with (b)–(d) TiH₂ and performed (a)–(c) with and (d) without Ca additive and performed with different parent alloys: (a) Al-7Si (F5), (b) Al-1Mg-0.6Si (F7), (c) Al-5Mg (F9), and (d) Al-Zn-Mg (F12).

(a)

(b)

(c)

(d)