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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