Effect of Electromagnetic Stirring on Solidification Structure of 1 t Electroslag Remelting Ingot of Alloy GH4169

吕达; 张雲飞; 张福利; 韩彦光; 任帅; 崔毅; 白丽娟

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Effect of Electromagnetic Stirring on Solidification Structure of 1 t Electroslag Remelting Ingot of Alloy GH4169

更新时间：2026-01-21

- Effect of Electromagnetic Stirring on Solidification Structure of 1 t Electroslag Remelting Ingot of Alloy GH4169
- Special Steel Vol. 39, Issue 5, Pages: 44-47(2018)
- 作者机构：
  
  河北钢铁技术研究总院,石家庄,050000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：13 June 2018，
  
  Online First：30 May 2022，
  
  Published：30 May 2018
- 稿件说明：
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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：

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：

摘要

研究了 1 t电渣锭重熔过程未加电磁搅拌和6 Hz

50 - 200 A电磁搅拌对GH4169合金(/% ：0.04C

0.21Si

0.05Mn

52. 85Ni

19. 8OCr

5.20Nb

3.05Mo

0.55A1

1.02Ti)凝固组织的影响。结果表明，电磁搅拌可以显著细化合金晶粒，增大等轴晶比率，降低二次枝晶间距;但当搅拌电流N100 A时，电渣锭的共晶组织增多

降低了电渣锭的塑性;当电流为50 A

频率为6 Hz时，等轴晶比例最高，二次枝晶间距最小，电渣锭中心位置Laves相含量最低

合金中共晶组织最少，合金塑性最好。

Abstract

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.

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