Effect of electromagnetic stirring on metallurgical quality of GCr15 electroslag ingot

To further improve the metallurgical quality of electroslag remelting, remove large inclusions in ingot and refine solidification structure ingot, an remelting furnace with electromagnetic stirring was designed, influence different magnetic induction intensities on GCr15 studied. Inclusions sizes types were analyzed by ASPEX scanning electron microscope, morphology composition observed a JSM-6510LV microscope. The distribution alloying elements cross section original position analysis (OPA). results show that whether or not is used, are mainly composed Al2O3, MnS, MnS-oxide other oxides, among which Al2O3 most. Compared without stirring, number decreases considerably, proportion small increases while when current 1.1 kA intensity 62 Gs applied. However, excessive force will cause diameter to increase again. Electromagnetic has effects segregation elements. Under experimental conditions, weak 108 little effect C, but P, aggravates alloy