FIELD: materials science.
SUBSTANCE: invention relates to material science and can be used for quantitative assessment of development of degree of burnt in deformed aluminum alloys after hardening thermal treatment. Method involves metallographic analysis, wherein the mass fraction of oxygen in the metal structure is determined, by the increase in which the degree of development of the burn is evaluated and there is a possibility of detecting the weak stages of the defect development, wherein increase by 10–15 % corresponds to the slight burn, increase of 20–30 % corresponds to the middle burn, and the increase of more than 35 % corresponds to the severe burn.
EFFECT: possibility of quantitative evaluation of burn at any stage of development in deformable thermo-reinforced aluminum alloys.
1 cl, 7 dwg, 1 tbl
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