Claims
- 1. A wear-resistant copper alloy consisting essentially of 56 to 65 wt. % of Cu, 28 to 32 wt. % of Zn, 3.5 to 5.5 wt. % of Al, 0.5 to 2.0 wt. % of Fe, 1.0 to 3.0 wt. % of Ni, 0.1 to 1.0 wt. % of Nb, and 0.4 to 1.5 wt. % of Ti wherein Ti+Nb is equal to or greater than 0.7 wt. %, and wherein said alloy includes two discrete intermetallic compounds dispersed as precipitates in the microstructure, a first of said compounds comprising Ti-Ni-Fe-Al and a second of said compounds comprising Nb-Fe-Al.
- 2. The wear-resistant copper alloy according to claim 1 wherein said alloy has a microstructure comprising one of alpha+beta phases, beta phase, and beta+gamma phases.
- 3. The wear-resistant copper alloy according to claim 2 wherein beta phase is present in an amount of at least 50 volume % of the microstructure.
- 4. The wear-resistant copper alloy of claim 2 wherein alpha phase, if present, is less than 30 volume of the microstructure.
- 5. The wear-resistant copper alloy according to claim 1 further comprising 0.1 to 3 wt. % of Pb.
- 6. A synchronizing ring for an automobile transmission comprising the wear-resistant copper alloy of claim 1.
- 7. A synchronizing ring for an automobile transmission comprising the wear-resistant copper alloy of claim 2.
- 8. A synchronizing ring for an automobile transmission comprising the wear-resistant copper alloy of claim 5.
Parent Case Info
This is a continuation-in-part of parent U.S. application Ser. No. 07/605,957, filed Oct. 30, 1990, now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (2)
Number |
Date |
Country |
60-86237 |
May 1985 |
JPX |
2-166247 |
Jun 1990 |
JPX |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
605957 |
Oct 1990 |
|