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:
Jan. 16, 1979
Filed:
Apr. 26, 1977
Applicant:
Inventors:
Nobuyuki Nagai, Kobe, JP;
Yasuo Moriguchi, Nishinomiya, JP;
Yoshimasa Itoh, Kobe, JP;
Shoji Ueda, Nagasaki, JP;
Yorimasa Takeda, Isahaya, JP;
Akira Hiromoto, Nagasaki, JP;
Assignees:
Mitsubishi Jukogyo Kabushiki Kaisha, Kobe, JP;
Kobe Steel, Ltd., Kobe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ; C21D / ;
U.S. Cl.
CPC ...
751755 ; 148133 ;
Abstract
A titanium alloy having a high degree of internal friction and suitable for rotating blades of turbomachines is composed of 5.5 - 6.75% Al, 1 - 5% V, 1 - 5% Mo, V plus Mo being greater than or equal to 5%, and the balance Ti and usual impurities, all by weight. A method of heat-treating the alloy comprises maintaining the same at a temperature not lower than 125.degree. C below its .beta. transformation point for a predetermined period of time and then rapidly cooling the alloy.