Patent · US Expired

Aluminium alloys

US4584173A · kind A · utility

13Cited by
0References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 9, 1984
Grant dateApr 22, 1986
Priority date
Expiry dateOct 9, 2004

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC22C21/06
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

An aluminium base alloy having a composition within the following ranges in weight percent: ______________________________________ Lithium 2.1-2.9 Magnesium 3.0-5.5 Copper 0.2-0.7 and ______________________________________ one or more constituents selected from the group consisting of Zirconium, Hafnium and Niobium as follows: ______________________________________ Zirconium 0.05-0.25 Hafnium 0.10-0.50 Niobium 0.05-0.30 and Zinc 0-2.0 Titanium 0-0.5 Manganese 0-0.5 Nickel 0-0.5 Chromium 0-0.5 Germanium 0-0.2 Aluminium Remainder (apart from incidental impurities). ______________________________________

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.