采用碳管炉冶炼含钛铁素体不锈钢,采用光学显微镜和扫描电镜分析试样中夹杂物的数量和类型,研究钢包渣氧化性和钢中[Al]含量对钢中TiO2夹杂物形成的影响,同时进行了渣中FeO与[Al]、[Ti]反应生成TiO2和Al2O3的热力学计算.计算和实验结果均表明,控制钢液中[Al]含量在平衡曲线(1)之上,同时尽可能降低钢包渣的氧化性,能够有效抑制钢中TiO2夹杂物的生成.
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