RT Journal Article SR Electronic A1 Hren, Iryna A1 Luňák, Milan A1 Kuśmierczak, Sylvia T1 The formation and elimination of the negative influence of porosity on the properties of the alloy castings AlSi10Mg JF Manufacturing Technology Journal YR 2020 VO 20 IS 2 SP 170 OP 176 DO 10.21062/mft.2020.034 UL https://journalmt.com/artkey/mft-202002-0013.php AB Aluminum alloys are often contaminated with non-metallic inclusions. A large number of these phases accelerate the tendency of porosity in castings, significantly reduce corrosion resistance and above all affect mechanical properties. Melting is one of the conventional methods for removing inclusions from melt. The efficiency of this process is influenced by several parameters such as the chemical composition of the melt, the amount of refining substances (wire, salts, tablets), the melting point and the casting method. Therefore, an experiment was performed to evaluate the effect of PROBAT FLUSS MIKRO 100 on the structural integrity in AlSi10Mg alloy. Porosity evaluation was performed by light microscopy. To confirm the results and their reflexes into the practical production of castings, a static tensile test was performed on the cast samples directly in the foundry operation.