LPBF拉伸试样的成形工艺参数为:200 W, 500 mm/s, 0.05 mm,对应的屈服强度、极限抗拉强度和延伸率分别为 558.57 MPa、 640.50 MPa 和 15.39%。断口处分布着深深浅浅、大小不一的韧窝,没有显著的孔洞等缺陷。
The forming process parameters of LPBF tensile sample were as follows :200 W, 500 mm/s, 0.05 mm. And the corresponding yield strength, ultimate tensile strength and elongation were 558.57 MPa, 640.50 MPa and 15.39%, respectively. Dimples of different sizes were distributed at the fracture site, without significant holes and other defects.