Metallurgy and Technology of Steel Castings

Deoxidation

Author(s): Jan Głownia

Pp: 92-111 (20)

DOI: 10.2174/9781681085708117010007

* (Excluding Mailing and Handling)

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.


Keywords: Effect of deoxidation, Morphology of non-metallic inclusions, Oxygen content, Type of deoxidation.

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