Research Article
Effect of Solidification Rate and Rare Earth Metal Addition on the Microstructural Characteristics and Porosity Formation in A356 Alloy
Figure 13
Examples of the eutectic Si particles observed in A356 alloy following addition of Sr, La, or Sr + La in samples obtained from the small section (200°C) of the step-like mold casting.
(a) No addition |
(b) After 100 ppm Sr addition |
(c) After 1.025% La addition |
(d) After La + 100 ppm Sr addition |