US5028277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous thin sheet of TiAl intermetallic compound and process for producing same
Assignee: Nippon Steel Corp
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Filing: 1990-02-23
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Granted: 1991-07-02
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Expires: 2010-02-23
Abstract
Abstract A continuous thin sheet of a TiAl intermetallic compound consisting of from 35 to 44 wt % Al and the balance Ti and unavoidable impurities, having a thickness of from 0.2 to 3 mm, and having a solidified, as-cast structure comprising columnar crystals extending from both surfaces of the sheet toward the center of the sheet thickness, and a process for producing the same by using a twin-roll type continuous casting procedure.
Inventors
- 👤 Toshiaki Mizoguchi
- 👤 Kenichi Miyazawa
- 👤 Toshihiro Hanamura
- 👤 Naoya Masahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:07
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; C; C22; C22C; C22C14/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A continuous thin sheet of a TiAl intermetallic compound consisting of from 35 to 44 wt. % Al and the balance Ti and unavoidable impurities, having a thickness of from 0.2 to 3 mm, and having a solidified, as-cast structure comprising columnar crystals extending from both surfaces of the sheet toward the center of the sheet thickness.
Claim 2
Dependent Claim
57 words
A continuous thin sheet of a TiAl intermetallic compound consisting of from 35 to 44 wt. % Al and the balance Ti and unavoidable impurities, having a thickness of from 0.2 to 3 mm, and having a solidified, as-cast structure comprising columnar crystals extending from both surfaces of the sheet toward the center of the sheet thickness.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-01 | 1994-12-31 | 1995-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-01 | 1998-12-31 | 1999-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-01 | 2002-12-31 | 2003-07-02 | $7700.00 | Window Closed / Lapsed |