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Experimental Measurement of Material Stability of 2024 T351 Aluminum Alloy for Weight Measurement Applications
Abstract:
This work presents an experimental analysis of the bulk content characterization of 2024 T351 Aluminum alloy under cyclic loadings used for precision applications such as balancing, optical, and laser instruments. Test samples with various machining directions (longitudinal and orthogonal) are formed using a CNC milling machine. Inelastic and plastic deformations in the nanoscale are the investigated characteristics of interest; hence, the fabric’s time constant at a fixed quarter-hour span. Samples with specific geometry are subjected to a tensile stress range of 10-150 N/mm2 provided by an electromagnetic test device. It should be said that all types of deformations considered were measured with and without loading using interferometers and capacitive sensors. Experiments are performed under constant temperature-stable housing whereas experimental measurements are recorded within the residual strain range of 10 microns. It was found that results recorded for inelastic and plastic deformations for both longitudinal and orthogonal cuttings direction samples are almost similar for the aluminum alloy considered. Moreover, comparing the results of plastic deformation of 2024 T351 aluminum alloy samples with similar steel samples for different fiber orientations showed close range results although the time constant of the 2024 T351 aluminum alloy samples was found to be three times that of other samples. Furthermore, it is clearly observed that the machining direction (whether orthogonal or longitudinal) produces a negligible effect on the measured value of inelastic deformation in the range from 2 nm to 10 nm under stress values of 10 MPa and 150 MPa.