Abstract

Nano graphene platelet (Gr) reinforced nano composites with a zinc-aluminum alloy (ZA27) matrix were produced by powder metallurgy at four different mass ratios (0.5wt%, 1.0wt%, 2.0wt% and 4.0wt%) and three different sintering temperatures (425, 450, and 475°C). In order to investigate the effect of sintering temperatures and nano graphene reinforcement materials on the composite structure, the microstructures of the composite samples were investigated and their densities were determined with a scanning electron microscope. Hardness, transverse rupture, and abrasion wear tests were performed to determine the mechanical properties. According to the test results, the porosity increased and the mechanical strength of the nano composites decreased as the amount of nano graphene reinforcement in ZA27 increased. However, when the composites produced in different reinforcement ratios were evaluated, the increase in sintering temperature increased the mechanical structure by positively affecting the composite structure.

中文翻译：

---

烧结温度对纳米石墨烯增强ZA27基复合材料孔结构比和力学性能的影响

摘要

通过粉末冶金以四种不同的质量比（0.5wt％，1.0wt％，2.0wt％和4.0wt％）和三种不同的烧结法生产具有锌铝合金（ZA27）基体的纳米石墨烯血小板（Gr）增强纳米复合材料温度（425、450和475°C）。为了研究烧结温度和纳米石墨烯增强材料对复合材料结构的影响，研究了复合材料样品的微观结构，并通过扫描电子显微镜确定了其密度。进行了硬度，横向断裂和磨损测试，以确定机械性能。根据测试结果，随着ZA27中纳米石墨烯增强量的增加，纳米复合材料的孔隙率增加，机械强度降低。然而，