supported by the National Natural Science Foundation of China (Grant No.50771081,50931004);the National Basic Research Program of China (2010CB631202)
A single crystal Ni-based superalloy AM3 was processed at withdraw rates of 3.5, 10, 50, 100, 200, and 500 μm·s-1, respectively.The as-cast microstructures and solidification segregation ratio were characterized wit...