The mean micro hardness has reached HV496.3. The fractography of the fracture section of the tensile sample was characteristic of dimple typically which indicated that the fracture belong to ductilefracture.
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- 硬度方面由于激光立体成形工艺的特点,最后几层的硬度比开始时的高,平均硬度达到了HV496.;3; 拉伸试样的断口形貌具有典型的韧窝特征,属于延性断裂。