Effect of Electro-Slag Remelting on Chemical Composition and Characteristics of Inclusions in Bearing Steel GCrl5
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Effect of Electro-Slag Remelting on Chemical Composition and Characteristics of Inclusions in Bearing Steel GCrl5
Special SteelVol. 37, Issue 4, Pages: 44-48(2016)
作者机构:
1. 西宁特殊钢股份有限公司,西宁,810005
2. 北京科技大学钢铁冶金新技术国家重点实验室,北京,100083
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基金信息:
DOI:
CLC:
Online First:03 August 2022,
Published:03 August 2016
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赵海, 陈列, 严清忠, et al. Effect of Electro-Slag Remelting on Chemical Composition and Characteristics of Inclusions in Bearing Steel GCrl5[J]. Special Steel, 2016, 37(4): 44-48.
DOI:
赵海, 陈列, 严清忠, et al. Effect of Electro-Slag Remelting on Chemical Composition and Characteristics of Inclusions in Bearing Steel GCrl5[J]. Special Steel, 2016, 37(4): 44-48.DOI:
Effect of Electro-Slag Remelting on Chemical Composition and Characteristics of Inclusions in Bearing Steel GCrl5
The test and analysis on φ26 mm round products rolled from 2. 3 t bearing steel GCH5 electroslag ingot remelting with (/% ) : 45CaF
2
l0CaO
40Al
2
O
3
5MgO slag series are carried out. Results show that after electroslag remelting (ESR) the burning loss of Al and Si and oxygen content increase in top of ingot are larger that that increase in bottom of ingot
the Si
Alt and 0 content in electrode
top and bottom are respectively (/%) 0. 24
0. 16
0. 21 ; 0. 025
0. 011
0. 017 and 0. 001 0
0.003 0
0.002 0. The inclusions in steel are mainly Al
2
0
3
Mg-Al-0 and Ca-Al-0 with minor TiN and compound inclusion with Mg-Al-0 core claddin
g by TiN ; and the per mm
2
inclusions number in top ingot is 16. 49 and that in bottom ingot is 14. 96; the main inclusion in top of ingot is Al
2
O
3
while that in bottom of ingot is Mg-Al- 0 and Ca-Al-0
the main cause is the Al content in bottom of ingot is higher to increase the reduction of MgO and CaO in slag.