FIELD: metallurgy of alloys based on aluminum. SUBSTANCE: aluminum deforming thermally hardening alloy of aluminum-zinc-magnesium system additionally alloyed by additions of manganese, chromium, titanium, zirconium, beryllium has following composition, mas % : zinc 4.7 - 5.3; magnesium 2.1 - 2.6; manganese 0.05 - 0.15, chrome 0.12 - 0.25, titanium 0.03 - 0.10; zirconium 0.07 - 0.12, beryllium 0.0002 - 0.003 and tolerable additions: cooper ≅0,2, iron ≅0,35, silicon ≅0,25, aluminum - balance. In the case total concentration of zinc and magnesium is equal to 7.35 +/- 0.55 mass % and their average ratio is 2.128. Alloy is strengthening by hardening and aging. Mechanical properties of alloy: σi = 44 - 46 kg/mm2, σ02 = 40 - 44 kg/mm2, δ≥ 10 %, Ak≥ 1.0 kgm/mm2, Brinell hardness is from 130 to 156 HV. EFFECT: increased hardness and strength of the alloy.
展开▼
机译：领域：铝基合金的冶金。物质：铝锌镁系统的铝变形热硬化合金，另外通过添加锰，铬，钛，锆，铍组成，其成分如下，质量％：锌4.7-5.3;镁2.1-2.6;锰0.05-0.15，铬0.12-0.25，钛0.03-0.10;锆0.07-0.12，铍0.0002-0.003和可容许的添加量：库珀≅0.2，铁≅0.35，硅≅0.25，铝-其余。在锌和镁的总浓度等于7.35 +/- 0.55质量％的情况下，它们的平均比率为2.128。合金通过硬化和时效进行强化。合金的机械性能：σ i = 44-46 kg / mm 2 ，σ 02 = 40-44 kg / mm 2 ，δ≥10％，Ak≥1.0 kgm / mm 2 ，布氏硬度为130至156 HV。效果：增加了合金的硬度和强度。
展开▼
