铝是一种广泛流行的材料,由于其低成本,低重量,良好的可成形性和易于加工的能力。当将陶瓷等非金属添加到铝合金中时,它形成一个复合材料。金属基复合材料(MMC)由于能够承受重负荷而成为传统金属的替代品,优异的耐腐蚀性和耐磨性,和相对较高的硬度和韧性。铝基复合材料(AMC),MMC中最受欢迎的类别,在科学研究等各个领域都有无数的应用,结构,汽车,海洋,航空航天,国内和建筑。它们有吸引力的特性,如高强度重量比,高硬度,高冲击强度和优异的摩擦学性能使它们能够用于汽车部件,航空结构和船舶部件。因此,在这项研究工作中,已经尝试制造铝合金和铝基复合材料(AMC)使用流行的合成技术称为搅拌铸造,并通过摩擦搅拌焊接(FSW)。不同等级的铝合金,即,Al6061和Al1100用于实验工作。氧化铝和碳化硅用作铝基体的增强材料。机械和腐蚀性能进行实验评估。通过实验比较焊接合金和焊接复合材料,分析了FSW过程。最后,在基于多属性决策(MADM)的数值优化技术的帮助下,选择最合适的FSW组合,该技术称为加权汇总产品评估(WASPAS)。
Aluminum is a widely popular material due to its low cost, low weight, good formability and capability to be machined easily. When a non-metal such as ceramic is added to aluminum alloy, it forms a composite. Metal Matrix Composites (MMCs) are emerging as alternatives to conventional metals due to their ability to withstand heavy load, excellent resistance to corrosion and wear, and comparatively high hardness and toughness. Aluminum Matrix Composites (AMCs), the most popular category in MMCs, have innumerable applications in various fields such as scientific research, structural, automobile, marine, aerospace, domestic and construction. Their attractive properties such as high strength-to-weight ratio, high hardness, high impact strength and superior tribological behavior enable them to be used in automobile components, aviation structures and parts of ships. Thus, in this research work an attempt has been made to fabricate Aluminum Alloys and Aluminum Matrix Composites (AMCs) using the popular synthesis technique called stir casting and join them by friction stir welding (FSW). Dissimilar grades of aluminum alloy, i.e., Al 6061 and Al 1100, are used for the experimental work. Alumina and Silicon Carbide are used as reinforcement with the aluminum matrix. Mechanical and corrosion properties are experimentally evaluated. The FSW process is analyzed by experimentally comparing the welded alloys and welded composites. Finally, the best suitable FSW combination is selected with the help of a Multi-Attribute Decision Making (MADM)-based numerical optimization technique called Weighted Aggregated Sum Product Assessment (WASPAS).