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EFFECT OF RARE-EARTH ADDITIONS ON SOME STAINLESS STEEL MELTING VARIABLES

Journal Article · · Trans. Met. Soc. AIME
OSTI ID:4193533
Rare-earth additions were made to laboratory heats of Type 310 stainless to observe their effect on as-cast ingot structure, nitrogen and sulfur contents, and nonmetallic inclusions. Lantbanum produced a grain-refining effect in 30-lb ingots, but results with 200-lb ingots were inconsistent. Cerium, lanthanum, and misch metal lowered the sulfur content when the sulfur exceeded 0.015 wt.% and the rare-earth addition was greater than 0.1 wt.%. The rare-earth content in tbe metal dropped very rapidly within the first few minutes after the addition. The size, shape, and distribution of nonmetallic inclusions was not changed in 30-lb ingots, but changes were noticed in larger ingots. (auth)
Research Organization:
Crucible Steel Co. of America, Pittsburgh
NSA Number:
NSA-14-008778
OSTI ID:
4193533
Journal Information:
Trans. Met. Soc. AIME, Journal Name: Trans. Met. Soc. AIME Vol. Vol: 218
Country of Publication:
Country unknown/Code not available
Language:
English

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