Patent US3828655A successfully refreshed from Google Patents.
Patent US313856A successfully refreshed from Google Patents.
Patent CA477791A successfully refreshed from Google Patents.
US4433005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fatigue resistant tatanium alloy articles
Assignee: RTX Corp
•
Filing: 1982-01-13
•
Granted: 1984-02-21
•
Expires: 2002-01-13
Abstract
Abstract Titanium and titanium alloy particles are provided with improved mechanical properties through the use of ion implantation. Ions of elements selected from the noble metals and titanium are employed. Ion energies of 50-200 kev and ion densities of at least 10 14 ions/sq. cm. are employed.
Inventors
- 👤 Brian A. Manty
- 👤 Thomas A. Eckler
- 👤 Shiro Fujishiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:57
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/48; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A method for increasing the elevated temperature fatigue strength of titanium articles which consists of using ion implantation to implant materials selected from the group consisting of the noble metals and titanium and mixtures thereof into the surface of the article under the following conditions: an incident ion energy between about 50 and about 200 kev with the total number of implanted ions exceeding about 10 15 ions/sq. cm. of article surface but not exceeding about 10 18 ions/sq. cm.
Claim 2
Independent Claim
80 words
A method for increasing the elevated temperature fatigue strength of titanium articles which consists of using ion implantation to implant materials selected from the group consisting of the noble metals and titanium and mixtures thereof into the surface of the article under the following conditions: an incident ion energy between about 50 and about 200 kev with the total number of implanted ions exceeding about 10 15 ions/sq. cm. of article surface but not exceeding about 10 18 ions/sq. cm.
References Cited (Backward Citations)
GB990174A
Cited
DE1483388A1
Cited
DE2202015A1
Cited
US3900636A
Cited
JPS5348103A
Cited
US4137370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |