Effect of Solidification Rate and Rare Earth Metal Addition on the Microstructural Characteristics and Porosity Formation in A356 Alloy

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/amse/volume-2017/5086418/figures/5086418.fig.003a.svgz" name="5086418.fig.003a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td>(a) Temperature-time curve and first derivative of the A356 base alloy showing (1) precipitation of α-Al dendrite network, (2) Al-Si eutectic reaction, (3) transformation of β-Fe to π-Fe phase, (4) precipitation of Mg2Si, and (5) end of solidification [<a href="/journals/amse/2017/5086418/#B18">31</a>]</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/amse/volume-2017/5086418/figures/5086418.fig.003b.svgz" name="5086418.fig.003b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td>(b) Temperature-time curve and its first derivative obtained from the A356 alloy modified with about 100 ppm Sr</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/amse/volume-2017/5086418/figures/5086418.fig.003c.svgz" name="5086418.fig.003c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td>(c) Temperature-time curves obtained from the variable angle mold at different angles</td></tr></table>

Advances in Materials Science and Engineering

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Figure 3

Figure 3: Effect of Solidification Rate and Rare Earth Metal Addition on the Microstructural Characteristics and Porosity Formation in A356 Alloy 