Matagofie Al-Si alloy metallographic ata

 

Fa'aleaga fatu fatu o 99.999% Al;
Barker's Reagent, Polarized Light

     

Al-1% Si as-cast fa'ata'ita'iga fa'atasi ai ma vaega Si i totonu o le α-Al matrix;"Si Blue" togitogiga

Al-7.12% Si, as-cast, faatasi ai ma le α-Al dendrites muamua ma se a-Al/Si eutectic;"Si Blue" togitogiga

Al -11.7% Si, as-cast, fa'atasi ai ma a-Al dendrites muamua ma se α-Al/Si eutectic;"Si Blue" togitogiga

Al -12% Si, as-cast, latalata eutectic, "Si Blue" etch

AI -12% Si, as-cast, latalata eutectic;Weck's Reagent, Polarized Light

Na-Modified Al - 12% Si, as-cast, latalata i le eutectic, "Si Blue" etch

Na-Modified Al -12% Si, as-cast, latalata i le eutectic Weck's Reagent, Polarized Light

Al - 12.9% Si, kalave mate lafo, "Si Blue" etch

Al- 12.9% Si-0.04% Sr, kalave mate lafo, "Si Blue" togitogi

Al-19.85% Si, as-cast, hypereutectic, muamua Si plus eutectic, Weck's Reagent -eutectic sela, 200X

Al-25% Si, as-cast, hypereutectic, matua Si ma se α-Al/Si eutectic, Weck's Reagent

Al - 50% Si, as-cast, ta'e muamua Si ma eutectic, "Si Blue" etch

Masaga i polycrystalline 99.9999% Si, pei-fa'asu vai 75% NaOH, Nomarski DIC

AI - SIi ata vaega