FIELD: metallurgy.
SUBSTANCE: invention relates to aluminium alloys of 2xxx and methods of their production. Method of producing articles from deformed aluminium alloy 2xxx involves preparation of articles from aluminium alloy for after annealing cold pressure shaping, aluminium alloy contains from 0.5 to 8.0 wt% of copper and not more than 0.5 wt% of silicon, wherein preparation stage involves hardening articles from aluminium alloy, cold forming by more than 50 % and thermal treatment, stage of cold and stage of thermal treatment is performed to achieve recrystallised microstructure having less than 50 % of volume fraction of grains of first type in article from aluminium alloy, first type grains are grains having spread of orientation of grains of not more than 3°.
EFFECT: invention is aimed at improvement of strength characteristics of product.
34 cl, 21 dwg, 12 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| IMPROVED ALUMINIUM ALLOYS 7XXX AND METHODS FOR PRODUCTION THEREOF | 2011 |
|
RU2581544C2 |
| IMPROVED 6XXX ALUMINUM ALLOYS AND METHODS FOR PRODUCING SAME | 2011 |
|
RU2603521C2 |
| ALUMINIUM-LITHIUM ALLOYS OF 2XXX SERIES WITH LOW DIFFERENCE IN STRENGTH | 2011 |
|
RU2598423C2 |
| HIGH-STRENGTH FORGED ITEMS OF ALUMINIUM ALLOY | 2011 |
|
RU2580261C2 |
| AGEING METHODS OF ALUMINIUM ALLOYS TO ACHIEVE IMPROVED BALLISTIC CHARACTERISTICS | 2010 |
|
RU2535415C2 |
| ALLOYS OF SET 2000 WITH IMPROVED PROPERTIES OF RESISTANCE AGAINST DAMAGES FOR AEROSPACE APPLICATION | 2005 |
|
RU2379366C2 |
| 2XXX SERIES ALUMINUM LITHIUM ALLOYS | 2013 |
|
RU2659529C2 |
| APPLICABLE IN AEROSPACE ENGINEERING ALLOYS OF 2000 SERIES WITH CHARACTERISTICS OF HIGHER RESISTANCE TO DAMAGES | 2006 |
|
RU2418877C2 |
| METHOD OF MANUFACTURING ARTICLES FROM ALUMINUM ALLOY OF 2XXX SERIES | 2021 |
|
RU2826059C1 |
| ALUMINIUM-LITHIUM ALLOYS OF 2XXX SERIES | 2012 |
|
RU2587009C2 |
