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2 2020

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The Effect of Modifier on the Microstructure of the AlSi10CuNiMn Alloy

Cais Jaromir, Heinrich Jiri, Jirounkova Klara

Advances in Science and Technology. Research Journal

2020

Vol. 14, no 2

13--18

This paper deals with different types of modifiers and their effect on the microstructure of the Al-Si alloy. For the purposes of this research, strontium, antimony and calcium were used as the modifiers of the AlSi10CuNiMn alloy. Unmodified alloy was cast in order to be compared with the alloy modified by different modifiers in various concentrations. The results of this research were analysed via light and electron microscopy.

The Effect of Artificial Ageing on the Mechanical Properties of the EN AW 2017 Alloy

Jirounkova Klara, Vozka Jan, Cais Jaromir

Advances in Science and Technology. Research Journal

2020

Vol. 14, no 1

75--80

This paper deals with different types of artificial ageing and its effect upon the mechanical properties of an aluminium alloy. For the purposes of this research, the EN AW 2017 alloy was subjected to different types of heat treatment. These samples were subjected to different analyses. The results of hardness measurements (HB and HV) revealed the highest values of the non‑heat treated sample. The static tensile stress test proved the highest ductility of the heat treated samples. Overall, the best were revealed for the sample artificially aged at 160°C.