This work focuses on the study of the selective laser melting (SLM) fabrication parameter of AlSi₁₀Mg specimen. SLM parameters such as Power and scanning speed are varied to identify the defect-free samples. In addition, X-ray diffraction (XRD) analysis is carried out on the AM AlSi₁₀Mg specimen to study the presence of phase. The results reveal that the Al matrix possesses (200), (220) and (311) phases whereas the AlSil0Mg powder has (111), (200), (220) and (311) phases. The microstructural characterization based on FESEM, TEM and EBSD analysis is carried out. The cross-section of the molten pool appears as a semi-cylindrical shape in the section that is parallel to the plane of powder deposition. The height, width and depth of the molten pool are measured as 150 ± 10 µm, 450 ± 10 µm and 50 ± 10 µm, respectively. TEM analysis reveals that the Si-precipitate and the eutectic Si element of the AM AlSi₁₀Mg specimen are clearly formed in the AM AlSi₁₀Mg specimen. Si precipitate spread within the grains whereas, the eutectic Si element is present at the grain boundary of the specimen. Then, the nanohardness and nanowear behavior are analyzed. Further, the influence of strain rate on the tensile strength is investigated. These mechanical tests are carried out on the defect-free AM AlSi₁₀Mg specimen to assess its maximum performance. Very rough as well as irregular fracture surfaces are observed in the tensile test AM AlSi₁₀Mg specimen. In addition to it, its magnified image reveals that the specimen fracture in the form of river patterns and contains a lot of micron-sized pores throughout the fracture surfaces.

本工作重点研究 AlSi ₁₀ Mg 试样的选择性激光熔化 (SLM) 制造参数。改变功率和扫描速度等 SLM 参数以识别无缺陷样品。此外，对 AM AlSi _{10进行了 X 射线衍射 (XRD) 分析}用于研究相存在的镁标本。结果表明，Al 基体具有 (200)、(220) 和 (311) 相，而 AlSil0Mg 粉末具有 (111)、(200)、(220) 和 (311) 相。进行了基于 FESEM、TEM 和 EBSD 分析的微观结构表征。熔池横截面在平行于粉末沉积平面的截面上呈半圆柱形。测量熔池的高度、宽度和深度分别为 150 ± 10 µm、450 ± 10 µm 和 50 ± 10 µm。TEM 分析表明，AM AlSi _{10 Mg 试样的 Si 析出物和共晶 Si 元素在 AM AlSi 10}中明显形成镁标本。Si 析出物在晶粒内扩散，而共晶 Si 元素存在于样品的晶界处。然后，分析了纳米硬度和纳米磨损行为。此外，研究了应变速率对拉伸强度的影响。这些机械测试是在无缺陷的 AM AlSi ₁₀ Mg 试样上进行的，以评估其最大性能。_{在拉伸试验 AM AlSi 10} Mg 试样中观察到非常粗糙和不规则的断裂表面。除此之外，它的放大图像还显示，标本以河纹的形式断裂，并且在整个断裂表面包含许多微米级的孔隙。