Chapter 5

Deoxidation

Jan Głownia

Abstract

Deoxidation of steel intended for castings is particularly important. Because rimmed steel, or even half-killed steel, cannot be used for castings, the oxygen content must be as low as possible. Low oxygen content is also associated with non-metallic inclusions nascent during solidification. Their morphology (number, location and size) decides on the mechanical properties in service conditions (e.g. sub-zero temperatures and in heat resistance conditions). Elimination of oxygen from steel must be combined with the removal of inclusions and their impact on the quality of cast steel.

Total Pages: 92-111 (20)

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