Al—Cu—Mg—Ag—Mn-alloy for...

Details Al—Cu—Mg—Ag—Mn-alloy for... Al—Cu—Mg—Ag—Mn-alloy for...

2007-06-12

2007-06-12

King, Roy (Department: 1742)

Metal treatment

Stock

Age or precipitation hardened or strengthened

C420S533000, C420S539000

Reexamination Certificate

active

10853711

ABSTRACT:
An aluminum alloy having improved strength and ductility, comprising:Cu 3.5–5.8 wt. %,Mg 0.1–1.8 wt. %Mn 0.1–0.8 wt. %Ag 0.2–0.8 wt. %Ti 0.02–0.12 wt. % andoptionally one or more selected from the group consisting of Cr 0.1–0.8 wt. %,Hf 0.1–1.0 wt. %, Sc 0.03–0.6 wt. %, and V 0.05–0.15 wt. %.balance aluminum and incidental elements and impurities,and wherein the alloy is substantially zirconium-free.

REFERENCES:
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patent: 5211910 (1993-05-01), Pickens et al.
patent: 5376192 (1994-12-01), Cassada
patent: 5630889 (1997-05-01), Karabin
patent: 5665306 (1997-09-01), Karabin
patent: 5800927 (1998-09-01), Karabin
patent: 5879475 (1999-03-01), Karabin
patent: 54010214 (1979-01-01), None
patent: 08252689 (1996-10-01), None
“Aluminum and Aluminum Alloys”, ASM International, 1993, pp. 59, 62-64.

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