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.
Patent No.:
Date of Patent:
Dec. 15, 1992
Filed:
Feb. 28, 1991
Applicant:
Inventors:
Prakash K Mirchandani, Troy, MI (US);
Arunkumar S Watwe, Huntington, WV (US);
Walter E Mattson, Huntington, WV (US);
Assignee:
Inco Alloys International, Inc., Huntington, WV (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ; B22F / ;
U.S. Cl.
CPC ...
148437 ; 75249 ; 148438 ; 148439 ; 148440 ; 420528 ; 420529 ;
Abstract
The invention comprises an alloy having improved intermediate temperature properties at temperatures up to about 316.degree. C. The alloy contains (by weight percent) about 1-6% X contained as an intermetallic phase in the form of Al.sub.3 X. X is at least one selected from the group consisting of Nb, Ti and Zr. The alloy also contains 0.1-4% strengthener selected from the group consisting of Si and Mg. In addition, the alloy contains about 1-4% C and 0.1-2% O present as aluminum carbides and oxides for grain stabilization.