engleski

The effect of modification with silicon carbide on the mechanical properties of the secondary aluminum alloy of the Al-Si system

The effect of modification on the mechanical properties of the secondary aluminum casting alloy (wt.%: 0, 528 Mg, 1, 124 Cu, 11, 539 Si, 84, 969 Al, 0, 905 Fe, 0, 692 Zn, 0, 242 Mn) without heat treatment was determined by the introduction of silicon carbide with a particle size of 1-3 μm in the amount of 0, 1, 0, 2, 0, 3 wt. %. When the content of SiC in the alloy from 0, 1 % to 0, 2%, the indicators of Rm increase from 130-145 MPa to 155-166 MPa, respectively. Increasing the SiC content to 0, 3% leads to a decrease in Rn values in the range of 117 - 127 MPa. Hardness indices (HD): unmodified alloy - 42 - 43, alloy with a content of 0, 1% SiC - 43 - 44, with a content of 0, 2% SiC - 46 - 47, with a content of 0, 3% SiC - 43 – 44.

secondary aluminum casting alloy ; mechanical properties ; silicon carbide

nije evidentirano