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

<div>Optical microstructures obtained from (a) B0, (b) D0, (c) D0 + 5%Ce + 0.15%Ti, (d) D0 + 5%La + 0.15%Ti alloys, and (e) D0 alloy modified with 200 ppm Sr (no RE was added). Note marginal modification in (c) compared to (b)—see black circled areas.</div>

Advances in Materials Science and Engineering

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Figure 5

Figure 5: Rare Earth Metal-Based Intermetallics Formation in Al–Cu–Mg and Al–Si–Cu–Mg Alloys: A Metallographic Study 