发明申请
WO2019211547A1 ALLIAGE ALUMINIUM CUIVRE LITHIUM A RESISTANCE EN COMPRESSION ET TENACITE AMELIOREES
审中-公开
基本信息:
- 专利标题： ALLIAGE ALUMINIUM CUIVRE LITHIUM A RESISTANCE EN COMPRESSION ET TENACITE AMELIOREES
- 专利标题（英）：ALUMINIUM-COPPER-LITHIUM ALLOY HAVING IMPROVED COMPRESSIVE STRENGTH AND IMPROVED TOUGHNESS
- 申请号：PCT/FR2019/050965 申请日：2019-04-24
- 公开(公告)号：WO2019211547A1 公开(公告)日：2019-11-07
- 发明人： MAS, Fanny , BARBIER, David , JUGE, Samuel , DANIELOU, Armelle , POUGET, Gaëlle , BAYONA-CARRILLO, Nicolas
- 申请人： CONSTELLIUM ISSOIRE
- 申请人地址： Rue Yves Lamourdedieu ZI des Listes 63500 Issoire FR
- 专利权人： CONSTELLIUM ISSOIRE
- 当前专利权人： CONSTELLIUM ISSOIRE
- 当前专利权人地址： Rue Yves Lamourdedieu ZI des Listes 63500 Issoire FR
- 代理机构： C-TEC CONSTELLIUM TECHNOLOGY CENTER
- 优先权： FR1853798 20180502
- 主分类号： C22C21/12
- IPC分类号： C22C21/12 ; C22C21/16 ; C22C21/18 ; C22F1/057
The invention relates to a product based on an aluminium alloy comprising, as percentages by weight, 4.0 to 4.6% by weight of Cu, 0.7 to 1.2% by weight of Li, 0.5 to 0.65% by weight of Mg, 0.10 to 0.20% by weight of Zr, 0.15 to 0.30% by weight of Ag, 0.25 to 0.45% by weight of Zn, 0.05 to 0.35% by weight of Mn, at most 0.20% by weight of Fe + Si, at least one element selected from Cr, Sc, Hf, V and Ti, the amount of said element, if selected, being from 0.05 to 0.3% by weight for Cr and for Sc, 0.05 to 0.5% by weight for Hf and for V and 0.01 to 0.15% by weight for Ti, the other elements being at most 0.05% by weight each and 0.15% by weight in total, the remainder being aluminium. The invention also relates to a method for obtaining such a product and to the use thereof as an aircraft structural element.