Effect of Aluminum on Mechanical and Tribological Properties of Automotive Grade Gray Cast Iron

Paper #:
  • 2015-26-0066

Published:
  • 2015-01-14
Citation:
Vadiraj, A., Tiwari, S., and Dasare, A., "Effect of Aluminum on Mechanical and Tribological Properties of Automotive Grade Gray Cast Iron," SAE Technical Paper 2015-26-0066, 2015, https://doi.org/10.4271/2015-26-0066.
Pages:
5
Abstract:
Mechanical and wear properties of Al alloyed gray cast iron (0.5% and 1.0%) were compared with that of Mo (1.0%) and Cu (0.77%) alloyed gray cast iron in this investigation. All the alloys showed pearlitic microstructure. The graphite morphology varied due to varying chemistry. The fracture surface showed “cabbage” like dimpled morphology indicating the predominant ductile fracture. It was found that the Mo containing cast iron show 25 to 30% higher strength and 6 to 7 times better wear resistance compared to Al containing cast irons. The worn surface showed oxide formation during sliding.
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