高温合金涡轮叶片定向凝固过程数值模拟研究进展
许庆彦(),杨聪,闫学伟,柳百成
Development of Numerical Simulation in Nickel-Based Superalloy Turbine Blade Directional Solidification
XU Qingyan(),YANG Cong,YAN Xuewei,LIU Baicheng

图4. 单晶高温合金凝固过程自然对流模拟与雀斑缺陷预测

Fig.4. Numerical simulation of natural convection and prediction of freckle in single crystal superalloy(a) fluid flow and freckle simulation in a 2D plate(b) comparison of simulated freckles with experimental results of a 3D ladder part