[Retracted] Improvement on Mechanical Properties of Submerged Friction Stir Joining of Dissimilar Tailor Welded Aluminum Blanks

Abstract

Friction stir welding is a solid-state welding method that produces joints with superior mechanical and metallurgical properties. However, the negative effects of the thermal cycle during welding dent the mechanical performance of the weld joint. Hence, in this research study, the joining of aluminum tailor welded blanks by friction stir welding is carried out in underwater conditions by varying the welding parameters. The tensile tests revealed that the underwater welded samples showed better results when compared to the air welded samples. Maximum tensile strength of 229.83 MPa was obtained at 1000 rpm, 36 mm/min. The improved tensile strength of the underwater welded samples was credited to the suppression of the precipitation of the secondary precipitates due to the cooling action provided by the water. The lowest hardness of 72 HV was obtained at the edge of the stir zone which indicated the weakest region in the weld zone.

[Retracted] Processing and Characterization of Novel Bio‐Waste Hybrid Brick Composites for Pollution Control

“…During the heatdissipating test, it has been investigated that the BA-3 and BA-4 bricks absorb less heat with different temperatures (20 °C, 30 °C, 40 °C, 50 °C, and 60 °C) and different time variations (5,10,15, and 20 minutes) among all newly developed samples, as shown in Figure 3. During the tests, it was investigated that BA-3 and BA-4 brick samples showed maximum heat dissipation after 20 minutes.…”

“…But, due to the cellulosic nature of cotton waste, high water absorption has also been noted. Crushed rock flour will substitute up to 40% of sand, but as the amount of sand replaced by rock flour increases, the workability decreases slightly [ 15 ]. The addition of nano-silica extracted from olivine increases the financial attractiveness of concrete and reduces the final product's CO 2 footprints [ 16 ].…”

[Retracted] Development of Novel Bio‐mulberry‐Reinforced Polyacrylonitrile (PAN) Fibre Organic Brake Friction Composite Materials

“…The mechanical properties of mulberry fibre were good in some articles [ 20 ]. PAN fibre is used in hot gas filtration systems, concrete reinforcement, sweater and socks manufacturing, and other applications due to its good mechanical properties [ 21 ]. Some natural fibres have been used as reinforcement materials, even though PAN has good frictional properties.…”

Evolution and Recent Scenario of Nanotechnology in Agriculture and Food Industries

“…Society demands in the food packaging industries are responded to by the new emerging technologies [139]. Therefore, bioactive packaging has a significant role in enhancing the impact of food on the consumer's health via 9 Journal of Nanomaterials healthier packaged foods [140,141]. In the production of functional foods, this would be considered an innovative strategy.…”