Rare Earth Metal-Based Intermetallics Formation in Al–Cu–Mg and Al–Si–Cu–Mg Alloys: A Metallographic Study

<div>Temperature-time curves and their first derivatives obtained from (a) B0-base alloy showing 1: precipitation of <i>α</i>-Al; 2: precipitation of <i>α</i>-Fe intermetallic phase; 3: precipitation of Al–Al<sub>2</sub>Cu eutectic and (b) D0-base alloy showing 1: precipitation of <i>α</i>-Al; 2: precipitation of Al–Si eutectic reaction; 3: precipitation of π-Fe intermetallic phase; 4: precipitation of Al–Al<sub>2</sub>Cu eutectic.</div>

Advances in Materials Science and Engineering

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Figure 2

Figure 2: Rare Earth Metal-Based Intermetallics Formation in Al–Cu–Mg and Al–Si–Cu–Mg Alloys: A Metallographic Study 