吕达, 张雲飞, 张福利, et al. Effect of Electromagnetic Stirring on Solidification Structure of 1 t Electroslag Remelting Ingot of Alloy GH4169[J]. Special Steel, 2018, 39(5): 44-47.
吕达, 张雲飞, 张福利, et al. Effect of Electromagnetic Stirring on Solidification Structure of 1 t Electroslag Remelting Ingot of Alloy GH4169[J]. Special Steel, 2018, 39(5): 44-47.DOI:
Effect of the non-electromagnetic stirring ( non-EMS) and the EMS with 6 Hz and 50 ~ 200 A in 1 t electroslag remelting (ESR) process on solidification structure o£ alloy GH4169 (/% : 0.04C
0.21 Si
0.05Mn
52. 85Ni
19. 80Cr
5.20Nb
3.05Mo
0.55Al
1.02Ti) has been studied. Results show that the EMS may obviously fine grains of alloy
increase ratio of equiaxed crystal and decrease spacing between secondary dentritic arms ; but as stirring electric current intensity is >100 A
the eutectic structure in ESR ingot increases to reduce the plasticity of ingot; as the current intensity is 50 A with frequency 6 Hz
the ratio of equiaxed crystal is max and the spacing between secondary dentritic arms is minimum
the Laves phase content in center of ESR ingot is lowest and the alloy with minor eutectic structure to get excellent plasticity of alloy.