对返回料制备的高温合金粉末球形度进行了表征,表征方法采用SEM拍摄的粉末颗粒二维投影的面积径与周长径的比值来表征。
The sphericity of powders produced from return material were characterized, and the characterization method was characterized by the ratio of area diameter to perimeter diameter of powder particles in two-dimensional projection taken by SEM.