Abstract
ABSTRACT The surface tension evaluation model of the Fe-based Cr–Ni–Ce–O–N heat-resistant alloy system was built, and the model shows good reproducibility. Calculations showed that nitrogen and oxygen are surface-active elements. Cerium also can work as a surface-active element with a low content of nitrogen and oxygen. The contents of O, Ce and N on the surface were higher than those in the bulk. The surface tension of heat-resistant steel in the refining process decreases due to blowing nitrogen. The effect of oxygen to reduce the surface tension is more significant. The decrease of the surface tension and periodical change of the interfacial properties caused by the ‘stirring’ effect of oxygen were helpful to promote the decarburisation process. The surface tension of the molten heat-resistant steel can stay constant with feeding Ce-wire in the Ladle Furnace (LF) refining process, which is helpful to form a stable reaction interface between the refining slag and the melt surface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
