The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 20, 1984

Filed:

Jul. 20, 1982
Applicant:
Inventor:

Lucas J Delaey, Bertem, BE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22F / ;
U.S. Cl.
CPC ...
148402 ; 148 / ; 148413 ; 420478 ;
Abstract

An aluminum bearing beta copper alloy that on heating to a first temperature shows a transition from an (alpha+beta)-region, an (alpha+beta+gamma)-region or a (beta+gamma)-region to a beta-region. Its average grain size is less than 200 .mu.m and it contains aluminium bearing precipitates, e.g. Co-Al-precipitates, the average size of which is less than 10 .mu.m and which are insoluble in the alloy below a second temperature that is higher than said first temperature. The fine grain structure guarantees an excellent mechanical and thermomechanical behavior of the alloy, while the aluminium bearing precipitates guarantee that this structure and hence the advantageous behavior of the alloy is maintained as long as the alloy is not heated to said second temperature.


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