The fracture of the as-extruded composite on a macroscopic scale is cup and cone morphology and features with the toughness failure on the microscopic scale.
挤压态合金的拉伸断口宏观上为杯锥状，微观上表现为明显的韧性断裂特征。
2
When the shrinkage of the rod fracture surface much more than that of the cup part fracture surface, its formation by compound extrusion is not applicable.