The structure, hardness, tensile and wear behavior of Mg–5Sb–xSiC hybrid composites experimented where the amount of SiC particles were 1, 3, and 5 wt% SiCp before and after applying hot extrusion process. Micron size SiC particles were added to Mg–5Sb alloy via stir casting technique to form both Mg₃Sb₂ and SiC particles in the as-cast microstructures. Although SiC addition reduced the grain size of the Mg–5%Sb in-situ metal matrix composite (MMC), no improvement was observed on ultimate tensile strength (UTS) and the ductility (EL.%) in the as-cast state. The use of the extrusion process led to a remarkable fracturing of Mg₃Sb₂ intermetallic along the extrusion direction, grain refinement, and reduction in the size of SiC clusters. The optimal amount of SiC was found to be 3 wt%, which reduced the grain size from ~ 827 to ~ 4 µm and promoted the UTS amounts from 120 to 244 MPa for as-cast and hot extruded composites. Besides, the enhancement of yield strength of extruded MMCs was rationalized depending on the grain size compared to the as-cast condition. The fractography of the as-cast composites revealed more cleavage planes in contrast with hot extruded composites, which proved much more dimples. It was also found that the use of hard SiC particles in hybrid composite improved wear properties just in the extruded state. According to observations, in various sliding test conditions, the abrasive, oxidation and delamination are mostly operated in combination.

对Mg-5Sb-xSiC杂化复合材料的结构，硬度，拉伸性能和磨损行为进行了实验，其中在应用热挤压工艺前后，SiC颗粒的含量分别为1、3和5 wt％SiCp。通过搅拌铸造技术将微米级的SiC颗粒添加到Mg-5Sb合金中，以在铸态组织中同时形成Mg ₃ Sb ₂和SiC颗粒。尽管添加SiC可以减小Mg–5％Sb原位金属基复合材料（MMC）的晶粒尺寸，但在铸态下，极限抗拉强度（UTS）和延展性（EL。％）并未得到改善。挤压工艺的使用导致Mg ₃ Sb ₂的明显破裂沿挤压方向的金属间化合物，晶粒细化和SiC团簇尺寸的减小。发现SiC的最佳含量为3 wt％，这对于铸造和热挤压复合材料而言，将晶粒尺寸从〜827减小至〜4 µm，并将UTS量从120提升至244 MPa。此外，与铸态相比，取决于晶粒尺寸，挤出的MMC的屈服强度的提高是合理的。与热挤压复合材料相比，铸态复合材料的分形图显示出更多的分裂面，而热挤压复合材料则具有更多的凹坑。还发现仅在挤出状态下在混合复合物中使用硬质SiC颗粒就改善了磨损性能。根据观察，在各种滑动测试条件下，磨料，氧化和分层大部分是结合使用的。