**5. Conclusions**

In summary, the influence of La at concentrations up to 1 wt.% on the phase composition and intermetallics formation during solidification of the nominal Al-4Mg-0.5Si aluminum alloy (AA 511 grade) has been investigated. Based on the results obtained, the main conclusion are as follows:


**Author Contributions:** Conceptualization, V.D., E.P. and P.S.; methodology, X.C.; formal analysis, V.D. and S.K.; investigation, V.D., E.P., S.S. and P.S.; writing—original draft preparation, V.D. and P.S.; writing—review and editing, E.P., E.R. and S.K.; project administration, S.K.; funding acquisition, V.D. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by the Russian Science Foundation (project No. 20-19-00687).

**Acknowledgments:** The authors would like to thank Natalia Korotkova for providing SEM investigations. **Conflicts of Interest:** The authors declare no conflict of interest.
