Evaluation of the Electroslag Remelting Process in Medical Grade of 316LC Stainless Steel

材料科学技术（英）, 2009, 25(5): 592-596.

^1, , ^2, , ^3, , ^4,

1.Institute of Advanced Technologies for Metallic Materials, Tarbiat Modares University, Tehran, Iran

2.Center of Excellence of Advanced Materials and Processing (CEAMP), Department of Metallurgy and Materials Science and Engineering, Iran University of Science & Technology (IUST), Narmak, Tehran, Iran

3.Department of Material Science, Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran,Iran

4.Department of Material Science, Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran,Iran

Evaluation of the Electroslag Remelting Process in Medical Grade of 316LC Stainless Steel

S. Ahmadi ^1, , H. Arabi ^2, , A. Shokuhfar ^3, , A. Rezaei ^4,

1.Institute of Advanced Technologies for Metallic Materials, Tarbiat Modares University, Tehran, Iran

3.Department of Material Science, Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran,Iran

4.Department of Material Science, Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran,Iran

Keywords： Ultra clean steel

This study is focused on the effects of electroslag remelting by prefused slag (CaO, Al_2O_3, and CaF_2) on macrostructure and reduction of inclusions in the medical grade of 316LC (316LVM) stainless steel. Analysis of the obtained results indicated that for production of a uniform ingot structure during electroslag remelting, shape and depth of the molten pool should be carefully controlled. High melting rates led to deeper pool depth and interior radial solidification characteristics, while decrease in the melting rates caused more reduction of nonmetallic inclusions. Large shrinkage cavities formed during the conventional casting process in the primary ingots were found to be the cause of the fluctuation in the melting rate, pool depth and extension of equiaxed crystals zone.

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Evaluation of the Electroslag Remelting Process in Medical Grade of 316LC Stainless Steel

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