|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||7th International Symposium on High Temperature Metallurgical Processing
||KK-2: Effect of CaO/SiO2 on the Crystallization Behavior of Blast Furnace Slag
||Qin Yuelin, Yang Yanhua, Zhang Qianying, Zhu Guangjun
|On-Site Speaker (Planned)
The critical cooling rate required for the formation of glassy slag is one of the important characteristics for molten BF slag. The crystallization behavior of molten BF slag has been studied by in situ observation. The isothermal and non-isothermal experiments were performed to construct time-temperature-transformation (TTT) and continuous-cooling-transformation (CCT) diagrams. The effect of binary basicity (CaO/SiO2) on the critical cooling rate of the CaO-SiO2-MgO-Al2O3 slags was studied under conditions of CaO/SiO2 = 1.1~1.4, 8 mass% MgO and 12 mass% Al2O3. The following finding are reported in the present paper: (i) Higher CaO/SiO2 increased the critical cooling rate. (ii) The crystallization temperature of molten BF slag lowers as the cooling rate increases, the slag have larger critical cooling rate, higher crystallization temperature. The results could be used to design proper cooling path of molten BF slag for the formation of glassy.
||Planned: A print-only volume