TY - JOUR N2 - Using methods of physical material studies (scanning electron microscopy and micro X-ray spectral analysis), a study was carried out with focus on alteration of structure and phase composition in surface layers of Al-Si alloy (silumin АК10М2N) treated in electroexplosive alloying with a multiphase plasma jet formed in the process of aluminum foil explosion and carrying particles of Y2O3 weighted powder portion. It was revealed that a porous surface layer with non-homogeneously distributed alloying elements (silicon, yttrium) in it is formed in any conditions of electroexplosive alloying of silumin. Thickness of the modified layer is different, varying 50 to 160 µm, depending on the zone to be examined. The modified surface consists basically of Al, Si and Y. Yttrium in the modified layer is thought to be an indirect evidence of better physical and mechanical properties of the surface layer in comparison with the base material. L1 - http://journals.pan.pl/Content/112195/PDF/02_173-178_01028_Bpast.No.67-2_06.02.20.pdf L2 - http://journals.pan.pl/Content/112195 PY - 2019 IS - No. 2 EP - 177 DO - 10.24425/bpas.2019.128605 KW - silumin KW - microstructure KW - electroexplosive alloying KW - yttrium oxide A1 - Zagulyaev, D. A1 - Konovalov, S. A1 - Gromov, V. A1 - Melnikov, A. A1 - Shlyarov, V. VL - 67 DA - 30.04.2019 T1 - Research into morphology and phase structure in the surface of Al-Si alloy modified by yttrium oxide SP - 173 UR - http://journals.pan.pl/dlibra/publication/edition/112195 T2 - Bulletin of the Polish Academy of Sciences Technical Sciences ER -