通过实验室坩埚实验,探讨了1873 K下合金结构钢液、渣、夹杂物之间的热力学关系.首先通过预平衡实验,确定了钢-渣反应达到平衡所需时间为90 min.随后,进行了7炉平衡实验,探讨了平衡实验中钢液、夹杂物、渣三者问的关系.结果表明,1873 K下,钢液与炉渣反应90 min后,钢中夹杂物主要为2(ч)m左右的细小球形MgO·Al2O3尖晶石夹杂物.钢-渣反应平衡时,镁铝尖晶石夹杂物中log(XMgo/XA12o3)分别与钢液中log[a[mg]]/(a2[AI]·a2[o])]、渣中log(aMgo/aA12o3)线性关系良好,斜率接近于1.
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