Abstract
Abstract In recent years it has been possible to deposit thick coatings of chromium electrolytically on machined parts, where lubrication is a vital factor. Diesel-engine cylinders and piston rings may be included among the most critical engine parts from a wear standpoint, and in this application, porous chromium has demonstrated its ability to increase the life span of an engine. The author outlines the properties inherent in porous chromium which contribute to its low wear rate in engine cylinders, i.e., hardness, exceeding that of any other cylinder-lining material; high thermal conductivity; low friction coefficient, and low affinity for other metals; corrosion resistance, preventing surface deterioration.
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