Effect of B2O3 on ESR Slag Viscosity for Remelting 9CrMoCoB Steel

• Published in: ISIJ International Vol. 62; no. 6; pp. 1070 - 1077
• Main Authors: Liu, Fu-bin, Li, Hua-bing, Zhen, Peng-lei, Tao, Xue-ru, Jiang, Zhou-hua, Geng, Xin
• Format: Journal Article
• Language: English
• Published: The Iron and Steel Institute of Japan 15.06.2022
• Subjects: 9CrMoCoB steel; B2O3; electroslag remelting; slag viscosity

The viscosity of the slag constituted by 55%CaF2–20%CaO–3%MgO–22%Al2O3–x%B2O3 (mass fraction: x ≤ 3) was measured by rotating cylinder method during the electroslag remelting (ESR) of 9CrMoCoB steel to analyze the effects of the B2O3 content on slag viscosity, break point temperature, and activation...