skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Clean Steel: Advancing the State of the Art (TRP 0003)

Abstract

This project had 3 objectives: (1) to determine the kinetic factors governing inclusion removal from liquid steels at a slag metal interface; (2) to develop a methodology to enable steels of less than 1 ppm total oxygen to be produced with an average inclusion diameter of less than 5 {micro}m; and, (3) to determine the slag-metal interface conditions necessary for ultra clean steels. In objectives 1, and 3, the major finding was that dissolution rates of solid particles in slags were found to be significant in both ladle and tundish slags and must be included in a model to predict steel cleanliness. The work towards objective 2 indicated that liquid steel temperature was a very significant factor in our understanding of clean steel potential and that undercooled steels equilibrated with low oxygen potential inert gases have the potential to be significantly cleaner than current steels. Other work indicated that solidification front velocity could be used to push particles to produce clean steels and that reoxidation must be severely curtailed to allow the potential for clean steels to be realized.

Authors:
;
Publication Date:
Research Org.:
American Iron and Steel Institute (US)
Sponsoring Org.:
USDOE Office of Industrial Technologies (OIT) (EE-20) (US)
OSTI Identifier:
840937
DOE Contract Number:  
FC36-97ID13554
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 19 May 2004
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 36 MATERIALS SCIENCE; DISSOLUTION; GASES; KINETICS; OXYGEN; OXYGEN POTENTIAL; REMOVAL; SLAGS; SOLIDIFICATION; STEELS; VELOCITY

Citation Formats

Sridhar Seetharaman, and Alan W. Cramb. Clean Steel: Advancing the State of the Art (TRP 0003). United States: N. p., 2004. Web. doi:10.2172/840937.
Sridhar Seetharaman, & Alan W. Cramb. Clean Steel: Advancing the State of the Art (TRP 0003). United States. doi:10.2172/840937.
Sridhar Seetharaman, and Alan W. Cramb. Wed . "Clean Steel: Advancing the State of the Art (TRP 0003)". United States. doi:10.2172/840937. https://www.osti.gov/servlets/purl/840937.
@article{osti_840937,
title = {Clean Steel: Advancing the State of the Art (TRP 0003)},
author = {Sridhar Seetharaman and Alan W. Cramb},
abstractNote = {This project had 3 objectives: (1) to determine the kinetic factors governing inclusion removal from liquid steels at a slag metal interface; (2) to develop a methodology to enable steels of less than 1 ppm total oxygen to be produced with an average inclusion diameter of less than 5 {micro}m; and, (3) to determine the slag-metal interface conditions necessary for ultra clean steels. In objectives 1, and 3, the major finding was that dissolution rates of solid particles in slags were found to be significant in both ladle and tundish slags and must be included in a model to predict steel cleanliness. The work towards objective 2 indicated that liquid steel temperature was a very significant factor in our understanding of clean steel potential and that undercooled steels equilibrated with low oxygen potential inert gases have the potential to be significantly cleaner than current steels. Other work indicated that solidification front velocity could be used to push particles to produce clean steels and that reoxidation must be severely curtailed to allow the potential for clean steels to be realized.},
doi = {10.2172/840937},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {5}
}