Al-Zn-Mg-Cu alloys and products with improved ratio of...

Details Al-Zn-Mg-Cu alloys and products with improved ratio of... Al-Zn-Mg-Cu alloys and products with improved ratio of...

2003-04-04

2009-06-23

King, Roy (Department: 1793)

Alloys or metallic compositions

Aluminum base

Copper containing

C148S417000

Reexamination Certificate

active

07550110

ABSTRACT:
The invention relates to alloys and associated products which are laminated, extruded or forged in Al—Zn—Mg—Cu alloy. Alloys of the invention generally comprise (in mass percentage):a) Zn 8.3-14.0=Cu 0.3-4.0=Mg 0.5-4.5 Zr 0.03-0.15 Fe+Si<0.25b) at least one element selected from the group consisting of Sc, Hf, La, Ti, Ce, Nd, Eu, Gd, Tb, Dy, Ho, Er, Y and Yb, the content of each elements; if included, being between 0.02 and 0.7%, andc) the aluminum remainder and inevitable impurities, and whereinMg/Cu<2.4 and(7.7−0.4 Zn)>(Cu+Mg)>(6.4−0.4 Zn). Products of the present invention are useful as structural elements (for example wing unit caisson, wing unit extrados) in aeronautical construction.

REFERENCES:
patent: 4345951 (1982-08-01), Coupry et al.
patent: 4713216 (1987-12-01), Higashi et al.
patent: 5221377 (1993-06-01), Hunt et al.
patent: 5560789 (1996-10-01), Sainfort et al.
patent: 6557289 (2003-05-01), Stall et al.
patent: 6627012 (2003-09-01), Tack et al.
patent: 2002/0121319 (2002-09-01), Chakrabarti et al.
patent: 2002/0162609 (2002-11-01), Warner
patent: 2004/0089378 (2004-05-01), Senkov et al.
patent: 2004/0099352 (2004-05-01), Gheorghe et al.
patent: 81441 (1983-06-01), None
patent: 08295977 (1996-11-01), None
“Aluminum and Aluminum Alloys”, ASM International, 1993, pp. 41, 45.

Affiliated with

Also associated with

Rating

Al-Zn-Mg-Cu alloys and products with improved ratio of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Al-Zn-Mg-Cu alloys and products with improved ratio of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Al-Zn-Mg-Cu alloys and products with improved ratio of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4113574