Control of inclusion morphology in steel

Details Control of inclusion morphology in steel Control of inclusion morphology in steel

1976-07-06

1977-08-16

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 58, 75123E, 75123M, C21C 700, C22C 3300

Patent

active

040423816

ABSTRACT:
Effective, low cost sulfide shape control is obtained using in combination titanium and a rare earth metal, e.g., mischmetal, in steels meeting the following specifications: at least 0.020% aluminum, no more than 0.010% nitrogen, no more than 0.025% sulfur, no more than 0.70% manganese, at least 0.020% titanium, and at least 0.020% of at least one rare earth metal. The steels are characterized by sulfide inclusions having a globular and/or fine, short blocky shape.

REFERENCES:
patent: 3218156 (1965-11-01), Sluis
patent: 3769004 (1973-10-01), Barnhardt
patent: 3816103 (1974-06-01), Link

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