Abstract
The non-heat treatable aluminium alloys usually need homogenization before hot rolling to decrease the inhomogenities. In the process the segregations are dissolving and small precipitations are forming. The progress of the processes strongly depend on the temperature and the duration of the heat treatment. Topic of the research was to describe the dissolution/precipitation processes during the heat treatment. It was carried out by two different methods. Using electrical transport properties (resistance and thermo-power) measurement the percentage of the dissolved elements were calculated, and by X-ray diffraction method the cumulative effect was determined through lattice parameter change. The results of the methods were compared regarding to the heat treatment parameters.
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