US4743513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wear-resistant amorphous materials and articles, and process for preparation thereof
Assignee: Dresser Industries Inc
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Filing: 1983-06-10
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Granted: 1988-05-10
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Expires: 2003-06-10
Abstract
Abstract Wear-resistant materials and articles, wherein an amorphous material having a hardness of greater than about 1600 VHN is utilized to protect wear-susceptible portions of substrates or is itself made into a wear-resistant article. Amorphous materials having hardnesses greater than about 1600 VHN are found to have surprisingly great wear resistance and can be used to prepare wear-resistant articles. Particularly satisfactory results have been obtained with metal-metalloid systems such as W-Ru-B, Re-Mo-B, Mo-Ru-B, and Co-Nb-B materials.
Inventors
- 👤 David M. Scruggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:26
CPC Classifications
C; C22; C22C; C22C45/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
An article of manufacture having a structure which is highly wear resistant, comprising: a substrate; and a piece of material positioned to protect said substrate from wear, said piece of material being at least partly amorphous, the amorphous portion having a hardness greater than about 1600 VHN, whereby the structure of said article is highly wear resistant, and wherein the amorphous material consists essentially of the chemical composition X r Y s B t , where X is at least one element selected from the group consisting of titanium, vanadium and niobium, Y is at least one element selected from the group consisting of cobalt, nickel, and iron, and r, s, and t are weight percentages wherein r ranges from about 32 to about 48, s ranges from about 44 to about 63, t ranges from about 5 to about 8, and the sum of r, s, and t is substantially 100.
Claim 2
Dependent Claim
152 words
An article of manufacture having a structure which is highly wear resistant, comprising: a substrate; and a piece of material positioned to protect said substrate from wear, said piece of material being at least partly amorphous, the amorphous portion having a hardness greater than about 1600 VHN, whereby the structure of said article is highly wear resistant, and wherein the amorphous material consists essentially of the chemical composition X r Y s B t , where X is at least one element selected from the group consisting of titanium, vanadium and niobium, Y is at least one element selected from the group consisting of cobalt, nickel, and iron, and r, s, and t are weight percentages wherein r ranges from about 32 to about 48, s ranges from about 44 to about 63, t ranges from about 5 to about 8, and the sum of r, s, and t is substantially 100.
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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) | 1991-05-10 | 1991-11-09 | 1992-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-10 | 1995-11-09 | 1996-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-10 | 1999-11-09 | 2000-05-10 | $7700.00 | Window Closed / Lapsed |