Material Systems for Cylinder Bore Applications - Plasma Spray Technology

Paper #:
  • 970023

Published:
  • 1997-02-24
Citation:
Rao, V., Kabat, D., Cikanek, H., Fucinari, C. et al., "Material Systems for Cylinder Bore Applications - Plasma Spray Technology," SAE Technical Paper 970023, 1997, https://doi.org/10.4271/970023.
Pages:
28
Abstract:
The development, evaluation, and selection of Plasma spray powder material for the coating of aluminum-alloy engine cylinder block bores was conducted to yield a bore system which provides numerous benefits relative to the present cast iron sleeve system. These include: a reduction in ring/bore wear, friction, and in engine oil consumption as well as a benefit in reduced corrosion. A reduction in engine weight, overall costs, and improvements in machining and honing operations are shown. Alternate thermal spray processes are also described in this investigation. Test evaluation leads to the selection of two plasma powder material spray systems. One system emphasizes low cost relative to the present system. The second system provides significant reduction in friction and ring/bore wear through the introduction of solid lubricant in the material composition.
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