Innovation of nano-composites with extraordinary characterizations for different industries is a challenge. Although shipbuilding industry is an important, it had been taken least attention. The aim of this article is to study the mechanical properties such as strength, ductility, toughness and hardness of AA5083 base metal (BM) reinforced with nano ceramic powders of silicon dioxide (Si₂O₃) by using friction stir processing (FSP) technique for the purpose of shipbuilding industry. Parametric analyses of both travel tool (25, 50, 100, and 150 mm/min) and rotational speed (400, 600 and1000 rpm) on nano composite alloy of (AA5083/Si₂O₃) have been performed. The analyses are carried out on both the unreinforced AA5083 and the reinforced AA5083 with Si₂O₃. It is elucidated that FSP technique plays a vital role in achieving homogenous microstructures of AA5083/Si₂O₃ nano-composites with 22 vol. % nano Si₂O₃ at optimum manufacturing conditions of 50 mm/min and 600 rpm. Furthermore, the uniform distribution of Si₂O₃ reinforcement and grain refinement of Al matrix enhances the mechanical properties such as ultimate tensile strength, elongation and microhardness compared to the BM. Additionally, the strength has been enhanced due to the refinement, dispersion of the grain, and sufficient time for recrystallization. Thus, the study elaborated that the nano particles of Si₂O₃ improved the ductility due to its perfect diffusion on the grain boundaries, and in turn increase the deformability. On the other hand, toughness of nano-composite (AA5083 with nano Si₂O₃) fabricated by FSP is slightly lower than that of the stand-alone BM, due to the fact that ceramic reinforcements are non-deformable.

对于不同行业，具有非凡特征的纳米复合材料的创新是一个挑战。尽管造船业很重要，但是却很少受到关注。本文的目的是通过摩擦搅拌工艺（FSP）技术研究用二氧化硅（Si ₂ O ₃）纳米陶瓷粉末增强的AA5083基本金属（BM）的力学性能，例如强度，延展性，韧性和硬度。以造船业为目的。（AA5083 / Si ₂ O ₃）纳米复合合金上的行进工具（25、50、100和150 mm / min）和转速（400、600和1000 rpm）的参数分析）已执行。对未增强的AA5083和带有Si ₂ O ₃的增强的AA5083均进行了分析。阐明了FSP技术在实现22 vol.Aa5083 / Si ₂ O ₃纳米复合材料的均匀微观结构中起着至关重要的作用。在50 mm / min和600 rpm的最佳制造条件下，纳米Si ₂ O _3的含量为％。此外，Si ₂ O ₃的均匀分布与BM相比，Al基体的增强和晶粒细化增强了机械性能，例如极限拉伸强度，伸长率和显微硬度。另外，由于细化，晶粒分散和足够的再结晶时间，强度得到了提高。因此，研究表明，Si ₂ O ₃纳米颗粒由于其在晶界上的完美扩散而提高了延展性，进而提高了可变形性。另一方面，由于陶瓷增强材料不可变形的事实，用FSP制备的纳米复合材料（带有纳米Si ₂ O _3的AA5083）的韧性略低于独立式BM。