Abstract
The primary objective of this study is to investigate the influence of SiC (Silicon carbide) nanoparticle reinforcement on the non-heat-treatable AA5083-H111 alloys to enhance the tensile strength of the friction stir welded joint. Using a universal testing machine, tensile tests were performed on the FSW (Friction Stir Welding) of AA5083-H111 aluminum in combination with SiC-reinforced butt joints. The statistical investigation followed the control group (AA5083-H111) and the experimental group (AA5083-H111 with SiC reinforcement). A PCBN (Polycrystalline Cubic Boron Nitride) tool, measuring 18 mm in diameter with a pin diameter of 6 mm and a height of 5.6 mm, was utilized for the experimental investigation of FSW. The sample size comprised 40 samples divided into two groups of 20. Independent sample testing was conducted with a statistical power of 80%. The AA5083-H111/SiC friction welded joint exhibits a maximum tensile strength of 365.22 MPa, surpassing the matrix materials by 30.3%. The statistical result found that AA5083-H111/SiC alloy achieved higher tensile strength than AA5083-H111 alloy with a significant value of two-tailed test p = 0.048 (p < 0.05) with a 95% confidence interval (CI). Statistically significant differences exist between the groups, as mentioned above. FSW of AA5083-H111 with SiC nanoparticles has displayed noteworthy assimilation of nanoparticles within the weld nugget zone. Nevertheless, it was observed that a high rotating speed of 1200 rpm coupled with an intermediate transverse speed of 60 mm/min has resulted in an enhanced tensile strength of the FSW joint.
doi: 10.17756/nwj.2023-s3-031
Citation: Saikiran N, Manikandan R. 2023. Investigation on Tensile Strength of Novel Non-heat-treatable Aluminium AA5083 Alloy Reinforced with and without SiC During Friction Stir Welding Process. NanoWorld J 9(S3): S157-S161.