The aim of the studies described in this article was to present the effect of rare earth elements on aluminium alloys produced by an unconventional casting technique. The article gives characteristics of the thin strip of Al-Si-RE alloy produced by Rapid Solidification (RS). The effect of rare earth elements on structure refinement, i.e. on the size of near-eutectic crystallites in an aluminium-silicon alloy, was discussed. To determine the size of crystallites, the Scherrer X-ray diffraction method was used. The results presented capture relationships showing the effect of variable casting parameters and chemical composition on microstructure of the examined alloys. Rapid Solidification applied to Al-Si alloys with the addition of mischmetal (Ce, La, Ne, Pr) refines their structure.
 M. Szymanek, B. Augustyn, W. Szymański, D. Kapinos, The Production of Wrought AlSi30Cu1.5Mg1.2Ni1.5Fe0.8 Alloy with Ultrafine Structure. Light Metals 521-5251 (2013).
 B. Augustyn, M. Szymanek, D. Kapinos, W. Pakieła, Evaluation of Functional Properties of the Rapidly Solidified Cast AlSi30 Alloy as a Material for Transport Applications, Light Metals, 975-980 (2014).
 M. Szymanek, B. Augustyn, D. Kapinos, S. Boczkal, J. Nowak, Producing Ultrafine Grain Structure in AZ91 Magnesium Alloy Cast by Rapid Solidification, Archives of Metallurgy and Materials 59, 1, 317-321 (2014).
 M. Szymanek, B. Augustyn, D. Kapinos, S. Boczkal, J. Nowak, The Production of Material with Ultrafine Grain Structure in Al-Zn Alloy in the Process of Rapid Solidification, Archives of Foundry Engineering 14, 2, 57-62 (2014).
 B.D. Cullity, S.R. Stock, Elements of X-ray Diffraction, Third Edition, Prentice Hall, 2001.
 H. Neff, Grundlagen und Anwendungen der Röntgenfeinstrukturanalyse, Oldenbourg-Verlag, 1962.
 B.E. Warren, X-Ray Diffraction. Addison-Wesley 1969.