| 摘要 |
FIELD: aluminium-based alloys for constructional materials. ^ SUBSTANCE: invention relates to alloys of general formula Al-Zn-Mg-Cu, containing (mass %): zinc 7.6-8.6; magnesium 1.6-2.3; copper 1.4-1.95; zirconium 0.08-0.18; scandium 0.01-0.25; silver 0.01-0.5; manganese 0.01-0.1; titanium 0.005-0.07; iron 0.02-0.15; silicium 0.01-0.10; beryllium 0.0001-0.005; hydrogen 0.8x10-5-2.7x10-5; antimony 0.00002-0.0005; and balance: aluminium, wherein total content of zirconium, scandium, titanium, and manganese is not more than 0.45 %. Alloys of present invention and products therefrom are useful for airspace technology, shipbuilding, etc. ^ EFFECT: alloys and products of high structural strength, improved corrosion strength and operational life. ^ 3 cl, 2 tbl, 1 ex |
