FIELD: metallurgy.
SUBSTANCE: invention relates to the field of metallurgy of aluminium - copper - magnesium - lithium alloys used for the manufacture of semi-finished products and products used as structural materials for aerospace technology. The aluminium-based alloy contains, wt.%: lithium 1.4-1.6; copper 1.6-2.0; magnesium 0.7-1.1; manganese 0.01-0.2; zinc 0.01-0.3; zirconium 0.04-0.2; scandium 0.003-0.15; calcium 0.02-0.15; beryllium up to 0.01; aluminium - the rest.
EFFECT: invention is aimed at increasing the ductility of the alloy while maintaining the level of strength characteristics, which makes it possible to produce thin sheets, thin-walled profiles and stampings while reducing the labour intensity of production and improving the performance of products made from an aluminium alloy of the above composition.
2 cl, 2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ALUMINUM BASE ALLOY AND PRODUCT OF SUCH ALLOY | 2006 |
|
RU2310005C1 |
| ALUMINIUM BASE ALLOY AND PRODUCTS MADE OUT OF IT | 2006 |
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| WROUGHT THERMALLY NON-HARDENED ALUMINIUM-BASED ALLOY, AND ITEM MADE FROM IT | 2008 |
|
RU2387725C2 |
| ALUMINUM-BASE ALLOY AND METHOD OF ITS HEAT TREATMENT | 1997 |
|
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| ALLOY ON BASE OF ALUMINIUM | 2009 |
|
RU2412270C1 |
