Mechanical Performance of Zr-Containing 354-Type Al-Si-Cu-Mg Cast Alloy: Role of Additions and Heat Treatment

Figure 2

Optical micrographs at 500X showing the morphology of the eutectic silicon in the alloys studied: (left) as-cast conditions and (right) solution heat-treated conditions: (a) as-cast alloy M1S, (b) SHT alloy M1S, (c) as-cast alloy M2S, (d) SHT alloy M2S, (e) as-cast alloy M3S, (f) SHT alloy M3S, (g) as-cast alloy M4S, (h) SHT alloy M4S, (i) as-cast alloy M5S, and (j) SHT alloy M5S.

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