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  Scopus ID: 21100926589

Investigation on Tensile Strength of Novel Non-heat-treatable Aluminium AA5083 Alloy Reinforced with and without SiC During Friction Stir Welding Process

Napa Saikiran and Ravi Manikandan

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.

Published on: October 05, 2023
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.

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