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:
Oct. 21, 1997
Filed:
Nov. 29, 1995
Applicant:
Inventors:
Assignee:
NKK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C22F / ;
U.S. Cl.
CPC ...
148671 ; 148670 ;
Abstract
A method for making an .alpha.+.beta. titanium alloy comprising: preparing an .alpha.+.beta. titanium alloy, hot-working the titanium alloy in an .alpha.+.beta. phase region, heating and then heat treating the hot-worked titanium alloy to a temperature from the .beta.-transus minus 55.degree. C. to the .beta.-transus minus 10.degree. C., air cooling the heat treated titanium alloy, heating and then heat treating the air cooled titanium alloy to a temperature from the .beta.-transus minus 250.degree. C. to the .beta.-transus minus 120.degree. C., and air cooling the heat treated titanium alloy.