Ahlatci H. | Candan E. | Çimenoglu H.

Article | 2004 | Wear257 ( 05.Jun ) , pp.625 - 632

In this study, the effect of Si addition up to 8% Si on the abrasive wear and mechanical properties of Al-Si/60 vol.% SiC composites produced by pressure infiltration technique has been investigated. Optimum properties in terms of improved strength and abrasion resistance without significant loss in toughness were obtained when the matrix alloy contained 1% Si. At Si contents higher than 1%, dramatic decrease of toughness was accompanied a reduction in strength and abrasion resistance. © 2004 Elsevier B.V. All rights reserved.

Ahlatci, H | Candan, E | Cimenoglu, H

Article | 2002 | ZEITSCHRIFT FUR METALLKUNDE93 ( 4 ) , pp.330 - 333

The effect of the reinforcing particle size on the mechanical properties of 60 vol.% SiC reinforced aluminium matrix composites produced by the pressure infiltration technique was examined by compression, impact and wear tests. The compression strength and the impact resistance decreased with increasing reinforcing particle size. The composites exhibited different abrasion behaviour depending on the size of abrasive Al2O3 grains. On fine abrasive Al2O3 grains (85 mum), the abrasion resistance increased with increasing reinforcing SiC particle size. The contrary result was obtained on coarse abrasive Al2O3 grains (250 mum). The wear . . .tests conducted on M2 quality tool steel revealed that reinforcing of aluminium with coarse SiC particles has a very beneficial effect on the wear resistance with respect to fine reinforcing SiC particles Daha fazlası Daha az