論文
鋼中アルミナ粒子のクラスタリングに及ぼす不安定な非平衡液体酸化鉄の影響
2013 年 99 巻 10 号 p. 601-609
詳細
2013 年 99 巻 10 号 p. 601-609
Alumina clusters extracted from molten steel and a cast slab at our plant were analyzed by SEM and TEM. It was found that a small amount of liquid FeO could accelerate the clustering of alumina inclusions in aluminum-killed steel because of the strong liquid-capillary negative pressure of liquid FeO. The sources of the FeO are most likely oxygen contamination from ferroalloy additives, residual steel adhering to the refractory surfaces of ladles and vessels, and air entrainment.
