A process for forming a carburized steel article includes carburizing a
steel material containing not more than 0.10% silicon and less than 1.1%
chromium to form an austenitic surface matrix having a high density of
carbides dispersed therein. After quenching, the carburized steel article
is characterized by an outer surface having a high ratio of carbides and
is substantially free of intergranular oxides. As a result of preventing
undesirable surface oxide formations and simultaneously providing a
beneficial surface carbide structure, the bending fatigue strength, wear
properties, and contact fatigue strength of articles such as gears,
shafts, bearings and couplings are greatly enhanced.