In this research, the friction stir processing passes overlapping effect on AA3105/SiC is studied by evaluating the microstructural, mechanical, and tribological properties of the produced composites. The results indicated that the decrease of offset amount in different passes mediated by the more homogenous distribution of strengthening particles in the processing zone, the composite tensile strength and hardness have increased. The wear rate has decreased by 36%, compared with the sample without the strengthening phase. Also, no significant variations in the hardness, strength, and wear resistance is not seen by the friction stir processing on both sides of the sample. Although, the effect of tool shoulder induced flow is so strong that it restricts the uniform particle mixture and the access of pin-induced flow upwards the stirring region, but the offsetting decrease in the different passes reduces the tool shoulder-induce flow. The obtained highest tensile strength and the lowest wear rate of the fabricated composite equaled to 189.40 MPa and 3.6 × 10⁻⁶ gr/m, respectively.

在这项研究中，通过评估生产的复合材料的微观结构、机械和摩擦学性能，研究了搅拌摩擦加工对 AA3105/SiC 的重叠效应。结果表明，由于强化颗粒在加工区的分布更加均匀，不同道次的偏移量减少，复合材料的抗拉强度和硬度有所提高。与没有强化相的样品相比，磨损率降低了 36%。此外，样品两侧的摩擦搅拌处理未观察到硬度、强度和耐磨性的显着变化。尽管工具肩部诱导流动的影响如此强烈以至于它限制了均匀的颗粒混合物和销诱导流动向上进入搅拌区域，但不同走刀中的偏移减少减少了工具台肩诱导流量。所得复合材料的最高拉伸强度和最低磨损率分别为 189.40 MPa 和 3.6 × 10^-6 克/平方米，分别。