Manufacturing Technology 2020, 20(2):170-176 | DOI: 10.21062/mft.2020.034

The formation and elimination of the negative influence of porosity on the properties of the alloy castings AlSi10Mg

Iryna Hren, Milan Luňák, Sylvia Ku¶mierczak
Faculty of Mechanical Engineering, J. E. Purkyne University in Usti nad Labem. Pasteurova 3334/7, 400 01 Usti nad Labem. Czech Republic

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.

Keywords: Keywords: AlSi10Mg alloy, casting defects, porosity, static tensile test
Grants and funding:

Grant UJEP-SGS-2020-48-002-2.
Grant UJEP-SGS-2019-48-001-2.  Grant UJEP-SGS-2019-48-003-2.

Prepublished online: August 17, 2020; Published: August 18, 2020  Show citation

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Hren I, Luňák M, Ku¶mierczak S. The formation and elimination of the negative influence of porosity on the properties of the alloy castings AlSi10Mg. Manufacturing Technology. 2020;20(2):170-176. doi: 10.21062/mft.2020.034.
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