journal article
LitStream Collection
doi: 10.1007/BF03378599pmid: N/A
Abstract Part I of this two-part paper, which appeared in the June issue, covered the effects of deoxidation with silicon, boron, aluminum, or carbon (under vacuum) on the machinability and microstructure of low-carbon resulfurized steels containing nominally 0.1%C-1.0%Mn-0.25%S. Deoxidation reduced machinability and it was concluded that the removal of oxygen was directly responsible. Deoxidation was found to suppress the formation of large random sulfide inclusions so that sufficiently strong deoxidation, such as with aluminum, caused the steel to solidify with a characteristic eutectic structure in which the inter dendritic sulfide inclusions were comparatively small. Consequently, the inclusions in the rolled steel were small and machinability was reduced.
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