Volume 11, Issue 3 (september 2014)                   IJMSE 2014, 11(3): 11-17 | Back to browse issues page

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Ahmadi S, Shahverdi H, Arabi H. EFFECTS OF ELECTRO-SLAG REMELTING PROCESS (ESR) ON MACROSTRUCTURE AND REFINEMENT OF A MEDICAL GRADE OF STAINLESS STEEL. IJMSE 2014; 11 (3) :11-17
URL: http://ijmse.iust.ac.ir/article-1-677-en.html
EFFECTS OF ELECTRO-SLAG REMELTING PROCESS (ESR) ON MACROSTRUCTURE AND REFINEMENT OF A MEDICAL GRADE OF STAINLESS STEEL
S. Ahmadi , H.R. Shahverdi , H. Arabi
Abstract:   (21362 Views)
This study is focused on the effects of electroslag remelting by prefused slag (CaO, Al2O3, and CaF2) on macrostructure and reduction of inclusions in the medical grad of 316LC (316LVM) stainless steel. Results showed that in order to obtain uniform ingot structures during electroslag remelting, the shape and depth of the molten pool should be carefully controlled. High melting rates lead to deeper pool depths and interior radial solidification characteristics. Furthermore, decrease in the melting rate caused more reduction of non-metallic inclusions. In practice, large shrinkage cavities formed during the conventional casting process in the primary ingots were the cause of the fluctuation in the melting rate, pool depth and extension of equiaxal crystals zone
Keywords: ultra clean steel, electroslag remelting, prefused slag, vertical solidification, radial solidification and 316LVM
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Type of Study: Research Paper |
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