Claims
- 1. A golf club head comprising a high-hardness glassy alloy containing at least Fe and at least a metalloid element and having a temperature interval ΔTx of a supercooled liquid as expressed by ΔTx=Tx−Tg (where, Tx is a crystallization temperature and Tg is a glass transition temperature) of at least 20° C.;wherein said glassy alloy has a value of ΔTx of at least 35° C., and contains at least metal element selected from the group consisting of Al, Ga, In and Sn, and at least one metalloid element selected from the group consisting of P, C, B, Ge and Si, wherein said glassy alloy has the following composition in atomic %: Al: from 1 to 10%, Ga: from 0.5 to 4%, P: from 0 to 15%, C: from 2 to 7%, B: from 2 to 10%, and the balance Fe.
- 2. A golf club head comprising a high-hardness glassy alloy containing at least Fe and at least a metalloid element and having a temperature interval ΔTx of a supercooled liquid as expressed by ΔTx=Tx−Tg (where, Tx is a crystallization temperature and Tg is a glass transition temperature) of at least 20° C.;wherein said glassy alloy has a value of ΔTx of at least 35° C., and contains at least metal element selected from the group consisting of Al, Ga, In and Sn, and at least one metalloid element selected from the group consisting of P, C, B, Ge and Si, wherein said glassy alloy has the following composition in atomic %: Al: from 1 to 10%, Ge: from 0.5 to 4%, P: from 0 to 15%, C: from 2 to 7%, B: from 2 to 10%, and the balance Fe.
- 3. A golf club shaft comprising an inner layer formed into a tubular shape by impregnating carbon fiber groups aligned in a direction with a thermosetting resin, and an outer layer formed by impregnating fine line or filament-shaped alloy groups aligned in a direction with a thermosetting synthetic resin, wherein the alloy constituting the fine line or filament-shaped alloy groups has a temperature interval ΔTx of a supercooled liquid as expressed by ΔTx=Tx−Tg (where, Tx is a crystallization temperature and Tg is a glass transition temperature) of at least 20° C., and the alloy has the following composition in atomic %:Al: from 1 to 10%, Ga: from 0.5 to 4%, P: from 0 to 15%, C: from 2 to 7%, B: from 2 to 10%, and the balance Fe.
- 4. A golf club shaft comprising an inner layer formed into a tubular shape by impregnating carbon fiber groups aligned in a direction with a thermosetting resin, and an outer layer formed by impregnating fine line or filament-shaped alloy groups aligned in a direction with a thermosetting synthetic resin, wherein the alloy constituting the fine line or filament-shaped alloy groups has a temperature interval ΔTx of a supercooled liquid as expressed by ΔTx=Tx−Tg (where, Tx is a crystallization temperature and Tg is a glass transition temperature) of at least 20° C., and the alloy has the following composition in atomic %:Al: from 1 to 10%, Ge: from 0.5 to 4%, P: from 0 to 15%, C: from 2 to 7%, B: from 2 to 10%, and the balance Fe.
Priority Claims (2)
Number |
Date |
Country |
Kind |
9-233069 |
Aug 1997 |
JP |
|
9-249932 |
Aug 1997 |
JP |
|
Parent Case Info
This application is a division of Ser. No. 09/140,806, filed Aug. 26, 1998.
US Referenced Citations (6)
Foreign Referenced Citations (2)
Number |
Date |
Country |
56-75542 |
Jun 1981 |
JP |
57-202709 |
Jun 1981 |
JP |