改善弹簧钢中氧化物夹杂形态的热力学条件  

Thermodynamic Conditions for Oxide Inclusion Modification in Spring Steels

作　　者：薛正良[1] 李正邦[1] 张家雯[1] 甘朝福 王玉 

机构地区：[1]钢铁研究总院工艺所,北京100081 [2]重庆特殊钢公司特殊钢研究所,重庆400032

出　　处：《钢铁研究学报》2000年第6期20-24,共5页Journal of Iron and Steel Research

基　　金：国家自然科学基金资助项目(59874023)

摘　　要：为了控制钢中析出氧化物夹杂的组成和形态 ,通过钢液 -夹杂物、钢液 -熔渣之间的化学平衡关系 ,以弹簧钢为例 ,计算了 182 3K时钢中强脱氧元素钙和铝的残余含量对析出夹杂物组成的影响 ,并给出了可使钢中析出具有良好变形能力的 Ca O· Al2 O3· 2 Si O2 夹杂物的钙、铝含量的控制范围和控制方法。With the thermodynamics equilibrium calculation established among molten steel and oxide inclusion, refining slag, the relationship between inclusion composition and trace of easily oxidizable elements presented in molten spring steel at 1 823 K were calculated as in order to control the composition and morphology of oxide inclusions. The content region of aluminum and calcium, and the controlling method in favor of precipitating the deformable inclusion anorthite were pointed out.

关 键 词：弹簧钢 氧化物 夹杂物形态 热力学 

分 类 号：TF762.5[冶金工程—钢铁冶金]