In the thesis we compared the calculated and measured anisotropy of EN AW-5754 alloy rolled under the same two technologies. The primary focus was on assessing the microstructural characteristics and mechanical properties of the rolled materials. The overarching objective was to verify the suitability and efficacy of industrial rolling designs through a parallel laboratory procedure. This validation encompassed key properties such as elongation, tensile strength, yield strength and anisotropy. The last was determinate with the earing measurements on the extracted cups, as well with the calculation from elongation in three directions according to the rolling direction.
To achieve this goal, we employed a comprehensive experimental approach that unfolded in two distinct phases. The initial phase took place at the Institute of Metals and Technology and Technologies (IMT), while the subsequent phase was executed at Impol FT. Across these stages, we meticulously rolled and examined a total of 20 diverse samples. At each rolling pass, two samples were extracted to facilitate an in-depth analysis of micro-grain size and mechanical attributes. No significant visible deviations occurred in laboratory and industrial rolling. The grain size deviated by only 1 ASTM grade. The compared etched microstructures under polarized light differed only in minor details. At the end of the experimental work, we also conducted a comparison of calculated and measured earing, which aligns up to a critical thickness of 1.7 mm in both the solid and annealed states.
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