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:
Jun. 04, 2002
Filed:
Mar. 28, 2000
Applicant:
Inventors:
Yuntian T. Zhu, Los Alamos, NM (US);
Terry C. Lowe, Santa Fe, NM (US);
Ruslan Z. Valiev, Ufa, RU;
Vladimir V. Stolyarov, Ufa, RU;
Vladimir V. Latysh, Ufa, RU;
Georgy J. Raab, Ufa, RU;
Assignee:
The Regents of the University of California, Los Alamos, NM (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 1/400 ; C22F 1/18 ;
U.S. Cl.
CPC ...
C22C 1/400 ; C22F 1/18 ;
Abstract
We disclose ultrafine-grained titanium. A coarse-grained titanium billet is subjected to multiple extrusions through a preheated equal channel angular extrusion (ECAE) die, with billet rotation between subsequent extrusions. The resulting billet is cold processed by cold rolling and/or cold extrusion, with optional annealing. The resulting ultrafine-grained titanium has greatly improved mechanical properties and is used to make medical implants.