Formation Mechanism of Macro-segregation and Surface Oscillation Marks in 304L Stainless Steel Continuous Casting Billets 304L不锈钢连铸坯表面振痕形貌及宏观偏析成因分析
Results showed that the combination of argon bubbling and magnetic field can control probably the meniscus fluctuation and obtain the plug flow and suppress the macro-segregation in end region of solidification at the same time. 结果表明,水口喷吹氩气结合施加恒稳磁场的作用,同时达到控制结晶器内弯月面波动、获得活塞流和抑制后凝固区偏析的目的。
Numerical simulation of macro-segregation formation during solidification process of immiscible alloys 难混溶合金凝固过程中宏观偏析形成的数值模拟
Macro-segregation of a steel ingot in a rectangular mold with a riser was simulated and the calculation result was compared with that of an experiment. 对带冒口铸钢锭的宏观偏析进行了数值模拟,并同实验结果进行了比较。
Furthermore, AC magnetic field can effectively reduce the macro-segregation of the solute elements and the segregation ratio was reduced evidently. 同时,交流磁场能有效抑制这3种溶质元素的宏观偏析,在交流磁场作用下,试样的偏析率明显减小。
The formation mechanism and potential position of macro-segregation are analyzed. 同时分析了宏观偏析的形成及可能形成的位置。
Influence of Electromagnetic Stirring on Macro-segregation of In-situ Al/ Mg_2Si Composites 电磁搅拌对Al/Mg2Si复合材料宏观偏析的影响
Ultrasonic treatment and electromagnetic stirring during solidification process have some effect on microstructure refinement but also result in macro-segregation of primary Si, reducing the usability of the alloy. 对于过共晶铝硅合金,凝固过程中的超声处理和电磁搅拌对于组织细化有一定的效果,但是也容易造成凝固组织中初生硅的偏聚,影响其使用性能。
Electromagnetic stirring before solidification had a little effect on macro-segregation of primary Si in the Sr-modified Al-20% Si alloy. 凝固前的电磁搅拌处理对于锶变质A1-20%Si凝固组织中初生硅的偏聚效应影响很小。