Quantity of excess phases as one of the quality criteria for alloys of the Al–Mg system

On the example of bars, hot-rolled plates and forgings, the effect of hot deformation on the structure and properties of materials from alloys of the “AMg” group of the Al-Mg system is considered. Dependence of excess phases formed during deformation and transferred from ingot material with temperature and prevailing mechanisms of hot plastic deformation of alloys of “AMg” group is considered. The relationship of the amount of excess phases with the corrosion resistance of the metal material, its crack resistance and tightness is shown. Based on the comparison of various calculated indicators of hot plastic deformation and metallography of metal material, the quantitative content of excess phases is justified as one of the complex indicators of its quality, simple ways to achieve it are proposed.
EDN: EELNCH, https://elibrary/eelnch

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