High damage tolerant Al-Cu alloy

Details High damage tolerant Al-Cu alloy High damage tolerant Al-Cu alloy

2008-01-29

2008-01-29

King, Roy (Department: 1742)

Metal treatment

Stock

Age or precipitation hardened or strengthened

C420S533000, C420S553000

Reexamination Certificate

active

10642507

ABSTRACT:
Disclosed is a high damage tolerant Al—Cu alloy of the AA2000 series having a high toughness and an improved fatigue crack growth resistance, including the following composition (in weight percent) Cu 3.8-4.7, Mg 1.0-1.6, Zr 0.06-0.18, Cr<0.15, Mn>0-0.50 , Fe≦0.15, Si≦0.15, and Mn-containing dispersoids, the balance essentially aluminum and incidental elements and impurities, wherein the Mn-containing dispersoids are at least partially replaced by Zr-containing dispersoids. There is also disclosed a method for producing a rolled high damage tolerant Al—Cu alloy product having a high toughness and an improved fatigue crack growth resistance, and applications of that product as a structural member of an aircraft.

REFERENCES:
patent: 3826688 (1974-07-01), Levy
patent: 4294625 (1981-10-01), Hyatt et al.
patent: 4336075 (1982-06-01), Quist et al.
patent: 5213639 (1993-05-01), Colvin et al.
patent: 5376192 (1994-12-01), Cassada, III
patent: 5593516 (1997-01-01), Cassada, III
patent: 5759302 (1998-06-01), Nakai et al.
patent: 5863359 (1999-01-01), Karabin et al.
patent: 5865914 (1999-02-01), Karabin et al.
patent: 5879475 (1999-03-01), Karabin
patent: 5897720 (1999-04-01), Dorward
patent: 5938867 (1999-08-01), Dorward et al.
patent: 6077363 (2000-06-01), Heymes et al.
patent: 6277219 (2001-08-01), Haszler et al.
patent: 6325869 (2001-12-01), Liu et al.
patent: 6562154 (2003-05-01), Rioja et al.
patent: 6569542 (2003-05-01), Warner et al.
patent: 6602361 (2003-08-01), Warner et al.
patent: 6974633 (2005-12-01), Garratt et al.
patent: 2002/0014288 (2002-02-01), Warner et al.
patent: 2002/0031681 (2002-03-01), Heinz et al.
patent: 2003/0070734 (2003-04-01), Heinz et al.
patent: 2003/0104990 (2003-06-01), Hauer et al.
patent: 2003/0140990 (2003-07-01), Ribes et al.
patent: 2004/0060618 (2004-04-01), Benedictus et al.
patent: 2004/0112480 (2004-06-01), Benedictus et al.
patent: 0473122 (1992-03-01), None
patent: 489408 (1992-06-01), None
patent: 723033 (1996-07-01), None
patent: 0731185 (1996-09-01), None
patent: 0989195 (2000-03-01), None
patent: 1045043 (2000-10-01), None
patent: 1114877 (2001-07-01), None
patent: 1170394 (2002-01-01), None
patent: 1026270 (2002-02-01), None
patent: 1045043 (2002-10-01), None
patent: 2789405 (2000-08-01), None
patent: 2352453 (2001-01-01), None
patent: 60067636 (1985-04-01), None
patent: 60067636 (1985-04-01), None
patent: 60251260 (1985-12-01), None
patent: 7252574 (1995-03-01), None
patent: 10017976 (1998-01-01), None
patent: 00 37702 (2000-06-01), None
patent: 2004018723 (2004-03-01), None
“Aluminum and Aluminum Alloys”, ASM International, 1993, p. 63-64.
J. R. Davis, “Metals Handbook—Desk Edition”, p. 427 (2000).
Davis, J.R., “ASM Specialty Handbook—Aluminium and Aluminium Alloys”, ASM International, p. 63-64 (1993).
Davis, J.R., “ASM Specialty Handbook—Aluminium and Aluminium Alloys”, ASM International, Paper No. XP-002266795, p. 20 (1996).
N. Ridlev and J. Pilling, “Superplastic deformation characteristics of some commercial aluminium alloys”, Aluminium Technology, London, Book 3, Session B, pp. 44.1-44.7 (Mar. 1986).
Davis, J.R., ASM Specialty Handbook, “Aluminium-Lithium Alloys”, p. 121 (May 1994).
Davis, J.R., ASM Specialty Handbook, “Aluminium and Aluminium Alloys”, pp. 143-147 (1993).
“ASM Handbook: vol. 2 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials”, ASM International, pp. 70-79 (1990).
“ASM Handbook: vol. 9 Metallography and Microstructures”, ASM International, pp. 364-365 (1985).
ASTM E112-96, Standard Test Methods for Determining Average Grain Size (1996).

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