US4503085A
Expired / Lapsed
US
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Amorphous metal powder for coating substrates
Assignee: Honeywell International Inc
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Filing: 1983-02-07
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Granted: 1985-03-05
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Expires: 2003-02-07
Abstract
Abstract The present invention is for a flat B containing amorphous powder based in Fe, Ni, Co or a combination thereof; a coating resulting from deposition of the powder; and a method for depositing the powder. The composition of the powder and the resulting coating consists essentially of the formulation: (Fe,Ni,Co)balCr0-20(Mn,Mo,W)0-35 (B,Si,C)5-25(Al,Ti)0-10 where the subscripts are in atomic percent and with the proviso that 4</=B</=15, and that the balance will exceed 50%.
Inventors
- 👤 James Dickson
- 👤 Louis F. Nienart
- 👤 David W. Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:48
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/002; C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; C23C4/067
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
80 words
An amorphous metal powder for deposit onto a substrate consisting essentially of the formulation: (Fe,Ni,Co).sub.bal Cr.sub.0-20 (Mo,W,Mn).sub.0-35 (B,Si,C).sub.5-25 (Al,Ti).sub.0-10 where the subscripts are in atomic percent and with the provisos that the B content is between 4 and 15 atomic percent, the Cr content is between 5 and 10 atomic percent, the Si content is at least 5 atomic percent and bal exceeds 50%, said powder being in fragmentized-ribbon platelet form and having a mesh size of -170 Tyler mesh.
Claim 2
Dependent Claim
80 words
An amorphous metal powder for deposit onto a substrate consisting essentially of the formulation: (Fe,Ni,Co).sub.bal Cr.sub.0-20 (Mo,W,Mn).sub.0-35 (B,Si,C).sub.5-25 (Al,Ti).sub.0-10 where the subscripts are in atomic percent and with the provisos that the B content is between 4 and 15 atomic percent, the Cr content is between 5 and 10 atomic percent, the Si content is at least 5 atomic percent and bal exceeds 50%, said powder being in fragmentized-ribbon platelet form and having a mesh size of -170 Tyler mesh.
Claim 3
Dependent Claim
21 words
The powder of claim 1 wherein at least 50% of said powder has a particle size greater than +270 Tyler mesh.
Claim 4
Dependent Claim
21 words
The powder of claim 1 wherein at least 50% of said powder has a particle size greater than +270 Tyler mesh.
Claim 5
Independent Claim
85 words
A method for hardfacing a metal surface comprising the steps of: selecting a fragmentized-ribbon platelet form of powder having a mesh size of -80 Tyler mesh and consisting essentially of the formulation: (Fe,Ni,Co).sub.bal Cr.sub.-20 (Mo,W,Mn).sub.0-35 (B,Si,C).sub.5-25 (Al,Ti).sub.0-10 where the subscripts are in atomic percent and with the provisos that the B content is between 4 and 15 atomic percent and that bal exceeds 50%; passing said powder through a flame spray torch or an arc plasma torch; and depositing said powder onto a metal substrate.
Claim 6
Independent Claim
85 words
A method for hardfacing a metal surface comprising the steps of: selecting a fragmentized-ribbon platelet form of powder having a mesh size of -80 Tyler mesh and consisting essentially of the formulation: (Fe,Ni,Co).sub.bal Cr.sub.-20 (Mo,W,Mn).sub.0-35 (B,Si,C).sub.5-25 (Al,Ti).sub.0-10 where the subscripts are in atomic percent and with the provisos that the B content is between 4 and 15 atomic percent and that bal exceeds 50%; passing said powder through a flame spray torch or an arc plasma torch; and depositing said powder onto a metal substrate.
Claim 7
Dependent Claim
16 words
The method of claim 4 wherein said powder has a mesh size of -170 Tyler mesh.
Claim 8
Dependent Claim
29 words
The method of claim 5 wherein the powder size is furter restricted such that at least 50% of said powder has a particle size greater than 270 Tyler mesh.
Claim 9
Dependent Claim
21 words
The method of claim 6 further comprising the step of: grit blasting and degreasing said metal substrate before depositing said powder.
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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) | 1988-03-04 | 1988-09-03 | 1989-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-04 | 1992-09-03 | 1993-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-04 | 1996-09-03 | 1997-03-05 | $7700.00 | Window Closed / Lapsed |