相场模拟Ni-Cu合金等温条件下的凝固，及各凝固条件对晶粒的影响-phase filed for alloys solidification

建立多元bcc结构合金，输出结果是合金位置坐标，可用于MS建模,分子动力学模拟-Establishment of multiple bcc structure of the alloy, the output is the location coordinates of alloys, can be used in MS modeling, molecular dynamics simulation