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2000 series alloys with enhanced damage tolerance performance for aerospace applications

机译：具有增强的耐损伤性能的2000系列合金，用于航空航天应用

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摘要

The invention provides a 2000 series aluminum alloy having enhanced damage tolerance, the alloy consisting essentially of about 3.0-4.0 wt% copper; about 0.4-1.1 wt% magnesium; up to about 0.8 wt% silver; up to about 1.0 wt% Zn; up to about 0.25 wt% Zr; up to about 0.9 wt% Mn; up to about 0.5 wt% Fe; and up to about 0.5 wt% Si, the balance substantially aluminum, incidental impurities and elements, said copper and magnesium present in a ratio of about 3.6-5 parts copper to about 1 part magnesium. The alloy is suitable for use in wrought or cast products including those used in aerospace applications, particularly sheet or plate structural members, extrusions and forgings, and provides an improved combination of strength and damage tolerance.

机译：本发明提供了具有增强的耐损伤性的2000系列铝合金，该合金基本上由约3.0-4.0wt％的铜组成;优选地，该合金由大约3.0-4.0wt％的铜组成。约0.4-1.1重量％的镁;最多约0.8 wt％的银;高达约1.0 wt％的Zn;高达约0.25 wt％Zr;高达约0.9 wt％的Mn;高达约0.5 wt％的铁;硅和至多约0.5wt％的硅，其余基本上是铝，附带的杂质和元素，所述铜和镁以约3.6-5份铜与约1份镁的比例存在。该合金适用于锻造或铸造产品，包括航空航天应用中使用的那些产品，特别是片或板结构构件，挤压件和锻件，并提供强度和损伤容限的改进组合。

著录项

公开/公告号EP2458026A1

专利类型
公开/公告日2012-05-30

原文格式PDF
申请/专利权人 ALCOA INC.;
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申请/专利号EP20120156602
发明设计人 LIN JEN C.;NEWMAN JOHN M.;MAGNUSEN PAUL E.;BRAY GARY H.;
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申请日2005-07-14
分类号C22C21/12;C22C21/16;C22F1/057;C22C21/14;C22C1/06;
国家 EP
入库时间 2022-08-21 17:12:32

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