The fracture morphology of matrix metal is dimple fracture and tear dimple, however, that of the cemented carbide is brittle cleavage fracture and intergranular fracture.

• 在冲击载荷作用下 ；基体金属断裂表现为高塑性的韧窝断裂 ；且存在一定撕裂棱 ；而硬质合金的断裂为脆性穿晶解理断裂或沿晶断裂 .