A Mathematical Model for Thermal Analysis of Thin Strip Casting of Low Carbon Steel

[+] Author and Article Information
Y. Kim, J. Keverian

Materials Engineering, Drexel University, Philadelphia, PA 19104

B. Farouk

Mechanical Engineering and Mechanics, Drexel University, Philadelphia, PA 19104

J. Eng. Ind 113(1), 53-58 (Feb 01, 1991) (6 pages) doi:10.1115/1.2899622 History: Received May 01, 1989; Revised February 01, 1990; Online April 08, 2008


A thermal analysis of thin strip steel casting has been conducted for planar flow casting. For a given strip thickness, the interface heat transfer coefficient, hi , has the most significant influence on average cooling rate ξavg (C/sec) and local solidification time tf . As a result, hi affects the as-cast structure and its properties. However, other factors such as melt superheat and initial substrate temperature have distinct but smaller effects on ξavg and tf . In addition, a decreasing hi makes initial isotherm movement slower and increases the delay time needed for the formation of certain types of segregation. Owing to a variation of local solidification time tf (because of cooling from one side only) there is a likely gradient of micro-structure across the thickness resulting in property variation through the steel strip thickness.

Copyright © 1991 by The American Society of Mechanical Engineers
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