Title:
TITANIUM ALLOY FOR USE IN GOLF-CLUB FACE
Document Type and Number:
WIPO Patent Application WO/2013/125038
Kind Code:
A1
Abstract:
The present invention provides a titanium alloy for use in the face of a golf club such as a driver or an iron. Said alloy complies with the limitation on coefficient of restitution, has a high Young's modulus and tensile strength, and excels in hot and cold workability. By mass, this alloy contains 1.0-3.5% aluminum, 0.5-1.4% iron, 0.2-0.5% oxygen, and 0.002-0.030% nitrogen, with the remainder comprising titanium and impurities. The alpha phase is strengthened by the addition of both oxygen and aluminum, and inexpensive iron was chosen as the beta-stabilizing element, resulting in both high strength and a high Young's modulus. The amount of aluminum, which reduces hot workability, is kept low, reducing the rolling load and minimizing scratches and edge cracking during hot rolling.
Inventors:
KAWAKAMI AKIRA (JP)
FUJII HIDEKI (JP)
FUJII HIDEKI (JP)
Application Number:
PCT/JP2012/054619
Publication Date:
August 29, 2013
Filing Date:
February 24, 2012
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
KAWAKAMI AKIRA (JP)
FUJII HIDEKI (JP)
KAWAKAMI AKIRA (JP)
FUJII HIDEKI (JP)
International Classes:
A63B53/04; C22C14/00; C22F1/18
Foreign References:
| JP2007239030A | 2007-09-20 | |||
| JP2004010963A | 2004-01-15 | |||
| JPH0770676A | 1995-03-14 | |||
| JPH0873968A | 1996-03-19 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
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