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| Thermodynamic modeling as a strategy for casting highly alloyed steels |
| Peri Reddy.V Sankara Raman Sankaranarayanan |
| National Institute of Technology, Tiruchirappalli - 620015, INDIA National Institute of Technology, Tiruchirappalli - 620015, INDIA |
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Abstract Oxides are encountered in steel plant operations, such as in steel making and continuous casting - in the form of fluxes, slags and refractories. Further, oxidation of some readily oxidizable elements often takes place - leading to certain difficulties in the process. The formation / presence of certain oxides can lead to problems such as clogging of Submerged Entry Nozzle during continuous casting. Difficulties associated with the oxides of Aluminium and Chromium have been reported in the literature. Strategies based on thermodynamic calculations can be used to overcome the problems associated with such oxides. Approaches to enable sustained casting of highly alloyed steels have been taken up in the present study. One of the strategies to avoid the oxidation of Chromium is to add small amounts of other elements (subject to other constraints), which do not cause subsequent problems. The problem has been studied using the Thermo-CalcR software, with related databases; and, the results obtained for different process conditions / generic compositions have been presented in this paper.
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Received: 27 August 2008
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| [1] |
Zhong Zheng,*,Jian-yu Long,Xiao-qiang Gao. Production scheduling problems of steelmaking-continuous casting process in dynamic production environment[J]. Chinese Journal of Iron and Steel, 2017, 24(6): 586-594. |
| [2] |
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| [3] |
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| [4] |
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| [5] |
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| [6] |
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2009, Vol. 16 
