pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (6권1호 5-11)
The effects of composition on the wear characteristics of Al-Si alloys.
Al-Si 합금(合衾)의 마멸특성(磨滅特性)에 미치는 조성(組成)의 영향(影響)
Hyuk Moo Kwon, Choong Kun Chang, Se Kyoon Shin
Chonnam National University
The Wear Characteristics of Al-Si alloys were investigated with various Si contents by using the not-dispersed alloys and uncoated-graphite dispersed alloys. Uncoated-graphite dispersions were accomplished by Vortex method carrying 1 hr. heating at 400℃ on uncoated-graphite. Wear loss were increased by increasing Si contents at the elevated final load. Hyper-eutectic alloys showed higher wear resistance values at the small final load of 2.1Kg and 3.2Kg, but at the more increased final load, hypo-eutectic alloys showed higher wear resistance values than hyper- eutectic alloys. The property of wear resistance of uncoated-graphite dispersed Al-Si alloys showed more good values than not-dispersed alloys. This peroperty of increased war resistance were resulted from lubricating action of dispersed graphite.