Sathish Thanikodi, Kaladgi Abdul Razak R, Mohanavel V, Arul K, Afzal Asif, Aabid Abdul, Baig Muneer, Saleh Bahaa
Department of Mechanical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 602105, Tamil Nadu, India.
Department of Mechanical Engineering, P.A. College of Engineering (Affiliated to Visvesvaraya Technological University, Belagavi), Mangaluru 574153, Karnataka, India.
Materials (Basel). 2021 May 24;14(11):2782. doi: 10.3390/ma14112782.
A lightweight, highly corrosive resistant, and high-strength wrought alloy in the aluminum family is the Aluminium 8006 alloy. The AA8006 alloy can be formed, welded, and adhesively bonded. However, the recommended welding methods such as laser, TIG (Tungsten Inert Gas welding), and ultrasonic are more costly. This investigation aims to reduce the cost of welding without compromising joint quality by means of friction stir welding. The aluminum alloy-friendly reinforcement agent zirconia is utilized as particles during the weld to improve the performance of the newly identified material AA8006 alloy in friction stir welding (FSW). The objectives of this research are to identify the level of process parameters for the friction stir welding of AA8006 to reduce the variability by the trial-and-error experimental method, thereby reducing the number of samples needing to be characterized to optimize the process parameters. To enhance the quality of the weld, the friction stir processing concept will be adapted with zirconia reinforcement during welding. The friction stir-processed samples were investigated regarding their mechanical properties such as tensile strength and Vickers microhardness. The welded samples were included in the corrosion testing to ensure that no foreign corrosive elements were included during the welding. The quality of the weld was investigated in terms of its surface morphology, including aspects such as the dispersion of reinforced particles on the welded area, the incorporation of foreign elements during the weld, micro defects or damage, and other notable changes through scanning electron microscopy analysis. The process of 3D profilometry was employed to perform optical microscopy investigation on the specimens inspected to ensure their surface quality and finish. Based on the outcomes, the optimal process parameters are suggested. Future directions for further investigation are highlighted.
8006铝合金是铝系中的一种轻质、高耐腐蚀性和高强度的锻造合金。AA8006合金可以进行成型、焊接和粘接。然而，推荐的焊接方法，如激光焊接、钨极惰性气体保护焊（TIG）和超声波焊接，成本更高。本研究旨在通过搅拌摩擦焊降低焊接成本，同时不影响接头质量。在焊接过程中，使用对铝合金友好的增强剂氧化锆作为颗粒，以改善新发现的AA8006合金在搅拌摩擦焊（FSW）中的性能。本研究的目的是通过试错实验方法确定AA8006搅拌摩擦焊的工艺参数水平，以减少变异性，从而减少为优化工艺参数而需要表征的样品数量。为了提高焊接质量，将在焊接过程中采用带有氧化锆增强的搅拌摩擦加工概念。对搅拌摩擦加工的样品进行了拉伸强度和维氏显微硬度等力学性能研究。将焊接样品纳入腐蚀测试，以确保焊接过程中不包含外来腐蚀元素。通过扫描电子显微镜分析，从表面形态方面研究了焊接质量，包括增强颗粒在焊接区域的分散情况、焊接过程中是否引入外来元素、微缺陷或损伤以及其他显著变化。采用三维轮廓测量法对检查的试样进行光学显微镜研究，以确保其表面质量和光洁度。根据结果，提出了最佳工艺参数。突出了进一步研究的未来方向。
