Rapid growth of mother dendrites in a given location of a melt at just below the liquidus temperature, that growth being the result of rapid heat extraction from the melt, or from recalescence. 在特定的熔点,以低于液相线的温度快速生成母晶枝,这是使熔融金属或复辉快速散热的结果。
The simulated results show that using the method can not only reveal dendrite morphology and micro-segregation but also represent the recalescence phenomenon. 模拟结果显示这种方法可以显示出枝晶形貌和显微偏析,同时可以再现凝固过程中的再辉现象。
These principles in elude heat transfer and recalescence, thermodynamics of metastable and non-equilibrium solidification, growth kinetics and solute redistribution. 这些原则包括:传热及温度回升,亚稳及非平衡凝固热力学,生长动力学及溶质分布。
Finally, in the light of measured recalescence curves both the dependence of the fraction solid on time and the solidification rate on transient undercooling were determined. 最后,由再辉曲线确定出深过冷液态金属再辉过程中的固相分数与时间以及凝固速度与瞬时过冷度的关系。
Recalescence behavior and formation of anomalous eutectic in the deeply undercooled Ni_ ( 80.3) B_ ( 19.7) alloys 深过冷Ni(80.3)B(19.7)合金的再辉和非规则共晶的形成
It has been presented that the recalescence temperature difference between ( 1010) edge plane and ( 0001) basal plane of graphite in graphite growing procedure is an important influencing factor on the growth morphology of graphite. 从而得出,石墨在生长过程中,(1010)棱面与(0001)基面的再辉温度差是影响石墨生长形态的重要因素。
Numerical Simulation of Recalescence During Alloy Solidification Process 合金凝固过程再辉现象的数值模拟
Adding 2% Si into the base alloy, recalescence phenomenon of the alloy is so severe that the alloy has no longer higher strength resulting in rapid! 加入质量分数为2%的Si会使合金的再辉现象非常严重,导致合金不可能有很高的强度而很快断裂;
As undercooling prior to solidification increases, the deformation degree in the rapidly solidified dendrite net rises, and the recalescence temperature as well as the duration at high temperature decreases. 随着凝固前过冷度的增加,快速凝固的枝晶骨架间的变形程度增加,再辉温度和在高温阶段停留的时间也降低。