Al-6061 alloy-based metal-matrix composite samples processed by the stir casting method have been investigated experimentally. Fly ash, an industrial waste byproduct, or rice husk ash, an agricultural waste, was used as the reinforcing material, collected from local sites and sieved to three different sizes. These sets of each type of composite were prepared with 15 wt.% of fly ash or rice husk ash particles of varying sizes (0 µm to 53 µm, 54 µm to 74 µm, and 75 µm to 105 µm). Mechanical properties such as the compressive strength, tensile strength, and hardness of the prepared samples were investigated. Characterization was performed by scanning electron microscopy and energy-dispersive spectroscopy. The results revealed that the Al–fly ash composites exhibited better mechanical properties as compared with the rice husk ash-reinforced composite or base aluminum alloy. The mechanical properties were enhanced in the composites prepared with particles of 0 µm to 53 µm as compared with larger sizes.

对搅拌铸造法加工的Al-6061合金基金属基复合材料样品进行了实验研究。飞灰，一种工业废物副产品，或稻壳灰，一种农业废物，被用作增强材料，从当地收集并筛分成三种不同的大小。每种类型的复合材料的这些组是用 15 重量％的不同尺寸（0 µm 至 53 µm、54 µm 至 74 µm 和 75 µm 至 105 µm）的粉煤灰或稻壳灰颗粒制备的。研究了制备的样品的机械性能，例如抗压强度、拉伸强度和硬度。通过扫描电子显微镜和能量色散光谱进行表征。结果表明，与稻壳灰增强复合材料或基体铝合金相比，铝粉煤灰复合材料具有更好的力学性能。与较大尺寸的颗粒相比，用 0 µm 至 53 µm 的颗粒制备的复合材料的机械性能得到增强。