Channappagoudar, S.Kiran Aithal, K.Sannayallappa, N.Desai, V.Mukunda, P.G.2026-02-052015Jordan Journal of Mechanical and Industrial Engineering, 2015, 9, 3, pp. 217-22119956665https://idr.nitk.ac.in/handle/123456789/26382The influence of 4.5 wt.% copper addition on wear behavior of as-cast Al-12Si alloy prepared by gravity casting is investigated in dry sliding against a steel counterface using a pin-on-disk apparatus. The microstructures of test alloys and worn surfaces were examined by scanning electron microscopy and energy dispersing X-ray spectroscopy. The addition of copper to the binary Al-12Si alloy led to the precipitation of CuAl2 phase. Copper addition resulted in a refinement of ?-Al and a minor modification of eutectic Si. The Al-12Si-4.5Cu alloy showed a higher wear resistance as compared to Al-12Si binary eutectic alloy. © 2015 Jordan Journal of Mechanical and Industrial Engineering. All rights reserved.AlloysAluminumCopperCopper alloysEutecticsMicrostructurePrecipitation (chemical)Scanning electron microscopySiliconSilicon alloysWear of materialsWear resistanceX ray spectroscopyBinary eutecticsCopper additionsCu additionEutectic alloysGravity castingPin-on-disk apparatusWear behaviorsWear propertiesAlloy steel