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From

Experimental Investigations towards Optimization of the Parameters for Wear Loss Quantities in A356/Al2O3 Nanocomposites

El-Sayed El-Kady, Tamer Khalil, Tarik Tawfeek

American Journal of Materials Engineering and Technology. 2015, 3(1), 1-6 doi:10.12691/materials-3-1-1
  • Figure 1. The three blades stainless steel stirrer
  • Figure 2. A tool steel mould used to squeeze the nanocompo- sites (a) and the ingot after squeezing (b)
  • Figure 3. A schematic diagram of the solution treatment and artificial aging process
  • Figure 4. The pin-on-disc wear tester
  • Figure 5. Variation of the weight loss of the A356 monolithic alloy with sliding time
  • Figure 6. Variation of the weight loss of the A356/Al2O3 (60 nm) nanocom- posites with sliding time (a) 1 Vol.-%, (b) 3 Vol.-% and (c) 5 Vol.-%
  • Figure 7. Variation of the weight loss of the A356/Al2O3 (200 nm) nanocom- posites with sliding time (a) 1 Vol.-%, (b) 3 Vol.-% and (c) 5 Vol.-%
  • Figure 8. Variation of the wear rate with sliding velocity for the A356/Al2O3 nanocomposites containing (a) 60 nm and (b) 200 nm Al2O3 nanoparticles
  • Figure 9. Variation of the wear rate with volume fraction for the A356/Al2O3 nanocomposites at sliding velocity of (a) 0.4 m/s, (b) 0.8 m/s and (c) 1.2 m/s
  • Figure 10. SEM of the worn surface of A356/5 vol.-% 60 Al2O3 nanocompo-sites after 0.5 km at 0.4 m/s
  • Figure 11. SEM micrograph shows the formation of the iron oxide layer on the worn surface of A356/5 vol.-% 60 nm Al2O3 nanocomposites