A steel article is fabricated by providing an iron-base alloy having less
than about 0.5 weight percent aluminum, melting the alloy to form a melt,
adding calcium to the melt, thereafter adding aluminum to the melt to
increase the aluminum content of the melt to more than about 0.5 weight
percent aluminum, and casting the melt to form a casting. Other calcium
additions may be made simultaneously with the adding of aluminum, and
after the adding of aluminum but before casting the melt. The calcium
additions deoxidize the melt to minimize the formation of clustered
aluminum-oxygen-based inclusions.