FIELD: metallurgy.
SUBSTANCE: invention can be used in the aerospace, transport and other industries to manufacture semi-finished products from thermally strengthened aluminium alloys of the Al-Cu-Mg-Mn-Ag system. The method includes preliminary homogenization annealing in the temperature range 500-520°C for at least 20 hours, subsequent quenching into water and intensive plastic deformation of the billet at room or cryogenic temperature with the accumulated true degree of deformation e≥4.
EFFECT: set of proposed operations makes it possible to increase the yield strength of alloys to 760 MPa, the ultimate strength to 850 MPa while maintaining a high level of plastic properties.
2 cl, 1 ex, 1 tbl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF THERMOMECHANICAL PROCESSING OF SEMI-FINISHED FRAGMENTS FROM ALUMINIUM ALLOYS OF Al-Cu, Al-Cu-Mg AND Al-Cu-Mn-Mg SYSTEMS FOR OBTAINING PRODUCTS WITH HIGH STRENGTH AND ACCEPTABLE PLASTICITY | 2015 |
|
RU2618593C1 |
| ULTRA-FINE ALUMINUM ALLOYS FOR HIGH-STRENGTH ARTICLES MADE UNDER SUPERPLASTICITY CONDITIONS, AND A METHOD OF PRODUCING ARTICLES | 2020 |
|
RU2739926C1 |
| METHOD FOR THERMOMECHANICAL PROCESSING OF SEMI-FINISHED PRODUCTS FROM HEAT-STRENGTHENED Al-Cu-Mg-Ag ALLOYS | 2019 |
|
RU2707114C1 |
| THERMOMECHANICAL PROCESSING FOR INCREASE IN DUCTILITY OF 3D SEMIS FROM Al-Cu-Mg-Ag ALLOYS | 2013 |
|
RU2534909C1 |
| METHOD OF DEFORMATION-HEAT TREATMENT OF VOLUME SEMI-FINISHED PRODUCTS OUT OF AL-CU-MG ALLOYS | 2014 |
|
RU2571993C1 |
| ULTRA FINE-GRAINED ALUMINIUM ALLOYS FOR ELECTRIC HARDWARE AND METHOD OF THEIR PRODUCTS (VERSIONS) | 2011 |
|
RU2478136C2 |
| METHODS FOR THERMOMECHANICAL TREATMENT OF CONDUCTIVE Al-Mg-Si SYSTEM ALLOYS | 2019 |
|
RU2749601C2 |
| PROCESSING OF LONG ALUMINIUM ARTICLES | 2013 |
|
RU2537675C2 |
| PLATE FROM HIGH-STRENGTH ALUMINIUM ALLOY AND METHOD OF ITS PRODUCTION | 2014 |
|
RU2569275C1 |
| METHOD FOR PRODUCING MASSIVE SEMIPRODUCTS FROM HIGH-STRENGTH ALUMINUM ALLOYS | 2020 |
|
RU2744582C1 |
