Zhang Yong,Sun Changliang,Liu Baoshi,et al.Effect of Electroslag Remelting Slag Systems on Non-metallic Inclusions in High-Quality Corrosion-Resistant Die Steel FS136[J].Special Steel,2026,47(05):42-47.
Zhang Yong,Sun Changliang,Liu Baoshi,et al.Effect of Electroslag Remelting Slag Systems on Non-metallic Inclusions in High-Quality Corrosion-Resistant Die Steel FS136[J].Special Steel,2026,47(05):42-47.DOI:10.20057/j.1003-8620.N260085.
Through the analysis of the chemical composition and non-metallic inclusions data of sampling experiments using two groups of different remelting slag systems to investigate the effect of electroslag remelting slag systems on non-metallic inclusion in corrosion-resistant die steel FS136, under identical experimental conditions, experiments with the binary(CaF
2
-Al
2
O
3
) and the quaternary(CaF
2
-Al
2
O
3
-CaO-MgO) slag systems showed no significant difference in alloying element loss. Metallographic observation and SEM analysis show that the non-metallic inclusions in FS136 steel are mainly Type D inclusions consist of Al
2
O
3
-based
granular inclusions. In FS136 steel processed with the quaternary experimental slag system, the Type D non-metallic inclusions were controlled to a rating level of 0.5–1.0. Compared with the binary slag system, the quaternary slag system exhibited better performance in wetting, absorption, and removal. The quaternary slag system can further improve the cleanliness of corrosion-resisant die steel FS136.
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