Dendritic Morphology of High-Strength Steel Castings

摘要

It was shown that microsegregation and dendritic size play a major role in determining mechanical properties of highstrength steel castings, and that microsegregation could be eliminated by means of 2500 F homogenization treatment. The resulting cast material exhibited mechanical properties identical to longitudinal properties of forged bar stock at the same strength level. Transverse forged properties were always inferior to longitudinal properties, thus the mechanical property superiority of this cast steel was established. (Author)