摘要
从统计学随机性和动力学必然性的角度，通过对定向凝固界面形态演化过程的分析，结合现有的实验观察与已有的枝晶模型，采用统计学随机模拟的方法提出了一个在恒速定向凝固条件下列状晶生长一次枝晶间距的数值统计模型，模型所得数值结果与实验结果吻合得很好。
In view of the statistical randomness and the dynamic necessity, analysis has been conducted on morphology development of solid-liquid interface in directional solidification. Based on the present experimental observations and the known dendritic models, a numerical statistical model of primary dendritic spacing is first presented to the dendritic array in directional solidification at constant velocity. The numerical model is in good agreement with the experimental results.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第5期449-454,共6页
Acta Metallurgica Sinica
基金
国家自然科学基金!59431012
59371047
关键词
定向凝固
一次枝晶间距
数值模拟
金属
directional solidification, primary dendritic spacing, stochastic simulation
