Cast iron making by cerium addition

Details Cast iron making by cerium addition Cast iron making by cerium addition

1985-11-20

1987-07-21

Andrews, Melvyn J.

Metal treatment

Stock

Ferrous

148903, C22C 3700

Patent

active

046816429

ABSTRACT:
This invention concerns an improvement in cast iron material and chilled iron material. The cast iron material has a C.E. value of not more than 4.3 in which cerium is added in the form of a mischmetal upon casting to a cerium content of from 0.005 to 0.035 wt %. The chilled cast iron article has a chilled layer formed by remelting at least a portion of the surface of the cast iron of a predetermined shape composed of the above-mentioned cast iron by a high density energy source such as tungsten inert gas (TIG) arc, laser or electron beam.

REFERENCES:
patent: 4000011 (1976-12-01), Sato et al.
patent: 4450019 (1984-05-01), Satou et al.

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