Investigation of the tribological behavior of eutectic Al-Si casting alloy

Abstract EN

The effect of roughness of Al-Si alloy on the wear is investigated.

Roughness average (Ra) was verified via different polishing, also was using a pin–on-disc of different loads (5, 10, 15) N, different speeds (100, 200, 300) rpm and relative humidity 74%.

Different values of Ra are obtained with (3, 5 and 7) µm.

Worn surface were characterized using SEM / EDX.

The results show that the wear rate of Al-Si eutectic alloys increases with the roughness increase.

It was noticed that the specific and wear decreases as roughness decreases.

Severe wear was observed at all loads.