DEFORMATIONS OF ALUMINUM ALLOYS UNDER THE INFLUENCE OF AN ADDITIONAL LOAD
Journal Title: Periódico Tchê Química - Year 2018, Vol 15, Issue 30
Abstract
Under the influence of a constant magnetic field, there is a deformation of solid particles. These processes in the future lead to destruction. Therefore, the authors investigated these processes in more detail. When studying the creep of the samples, a lever-type machine was used. During the measurements (at room temperature) simultaneously with the application of the load (carried out by steps), an elongation of the sample was recorded with a micrometer (division price 10 μm), at each loading stage. The test rig provided a constant load during the measurement, as well as smooth loading and unloading. Based on the performed experiments, it is found that creeping increases under stable magnetic field; the main features appear at the first creep stage. Thus, preliminary exposure of samples in a constant magnetic field (with induction B = 0.7 T for 30 minutes at room temperature) leads to an increase in the absolute deformation of the aluminum alloy to 35%. The material deformation constants are also determined under "β-flow" conditions. An increase in the material deformation constant at the first stage of creep was found to be more than 6 times. Investigation of these processes will help to predict time dependence of creep strain and its rate as well as durability and plasticity at destruction.
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