In industry, there is often a desire for improved formability of aluminum alloy. The method of transforming aluminum alloys in the cryogenic temperature range proved to be a possible solution. The latter method was tested on aluminum alloy quality AW-5754, where we initially performed a uniaxial tensile test of standard sheet metal samples at room temperature. By performing uniaxial tests on samples that were cut in different directions relative to the sheet rolling direction, we captured the influence of mechanical anisotropy. During the test at room temperature, the appearance of the Portevin-Le Chatelier effect is also observed. In order to carry out the tensile test in cryogenic state, it was necessary to build a suitable cooling chamber in which the test subjects could be adequately cooled and observed at the same time. The result of the tensile test in the cryogenic temperature range showed a 72% increase in tensile strength, 2.5 times greater elongation, an increase in the value of mechanical anisotropy and elimination of the Portevin-Le Chatelier effect.
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