摘要
通过实验室试验研究钢中MnS+Al_2O_3复合夹杂物的生成以及不同冷却速率对MnS+Al_2O_3复合夹杂物包裹率的影响。结果表明:被推动到钢液凝固前沿的Al_2O_3,会为MnS析出提供异质形核质点;随着冷却速率的增加,复合夹杂物的尺寸从4μm降至2.5μm左右,MnS+Al_2O_3复合夹杂物包裹率逐渐降低。本次试验研究为得到较优包裹程度的实验条件以及进一步改善钢材性能提供一定的理论分析。
The information of MnS ＋Al2O3and the effect of different cooling rate on MnS ＋Al2O3inclusions encapsulation rate was studied through Laboratory experiment. The results show that Al2O3 which was driven to solidification front of steel liquid provide heterogeneous nucleation particle for MnS precipitation. With the increasing of cooling rate,the size of MnS inclusions decreased from 4μm to 2.5μm,the encapsulation rate of MnS ＋Al2O3inclusions redeced gradually. This study provided crucial theoretical analysis for obtaining optimum experiment conditions of encapsulation rate and further improving steel properties.
出处
《工业加热》
CAS
2016年第3期20-22,共3页
Industrial Heating
基金
国家自然科学基金资助项目(51474085)
