AlSi10Mg alloy is very popular in the aerospace and automotive industries due to its high specific strength and thermal conductivity. Additive manufacturing is most widely used production technique to manufacture any complex shapes and it gives better properties as compared to cast products. Selective Laser Melting (SLM) is one of the most widely adopted technique used to develop components of AlSi10Mg alloy. AlSi10Mg of 10 mm height and 15 mm diameter cylindrical samples have been fabricated through SLM route and subsequently solutionised at 520 °C for 2 h and then quenched in water. Hot impression tests have been conducted at three different loads of 55, 92, and 129 MPa at 100 °C with a dwell time of 4 h for both as-built and solution-treated samples. The indentation depth vs. time was plotted for each case and the creep rate was calculated. Optical microscope and scanning electron microscope were used for microstructural analysis while phase analysis was carried out by XRD. The indentation depth increased on increasing the time and then remained constant irrespective of the load. However, the depth of indentation was more for higher load. The creep rate increased with increase in applied load. AlSi10Mg alloy showed better indentation resistance in the as-built condition as compared to solution heat treated condition. Samples in the as-built condition showed higher hardness in the as-built condition than solution heat treated condition.

AlSi10Mg合金由于其高比强度和导热性在航空航天和汽车工业中非常受欢迎。增材制造是制造任何复杂形状的最广泛使用的生产技术，与铸造产品相比，它具有更好的性能。选择性激光熔化 (SLM) 是用于开发 AlSi10Mg 合金部件的最广泛采用的技术之一。10 mm 高和 15 mm 直径圆柱形样品的 AlSi10Mg 已通过 SLM 路线制造，随后在 520 °C 下固溶 2 小时，然后在水中淬火。对于竣工样品和固溶处理样品，在 100 °C 下分别在 55、92 和 129 MPa 三种不同载荷下进行了热印测试，停留时间为 4 小时。为每种情况绘制压痕深度与时间的关系图，并计算蠕变速率。显微结构分析采用光学显微镜和扫描电子显微镜，相分析采用XRD。压痕深度随着时间的增加而增加，然后与载荷无关地保持恒定。然而，压痕深度对于更高的负载更大。蠕变速率随着外加载荷的增加而增加。与固溶热处理条件相比，AlSi10Mg 合金在竣工条件下表现出更好的抗压痕性。竣工条件下的样品在竣工条件下显示出比固溶热处理条件更高的硬度。压痕深度越大，负载越高。蠕变速率随着外加载荷的增加而增加。与固溶热处理条件相比，AlSi10Mg 合金在竣工条件下表现出更好的抗压痕性。竣工条件下的样品在竣工条件下显示出比固溶热处理条件更高的硬度。压痕深度越大，负载越高。蠕变速率随着外加载荷的增加而增加。与固溶热处理条件相比，AlSi10Mg 合金在竣工条件下表现出更好的抗压痕性。竣工条件下的样品在竣工条件下显示出比固溶热处理条件更高的硬度。