IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-5561827
(1994-12-28)
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발명자
/ 주소 |
- Reeves Jim D. (Cincinnati OH) Budinger David E. (Milford OH) Anderson Robert A. (Loveland OH)
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| 출원인 / 주소 |
- General Electric Company (Cincinnati OH 02)
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| 인용정보 |
피인용 횟수 :
25 인용 특허 :
0 |
초록
▼
A nickel-base superalloy article has a coating having a composition, in weight percent, of from about 10 to about 20 percent cobalt, from about 14 to about 25 percent chromium, from about 2 to about 12 percent aluminum, from 0 to about 0.2 percent yttrium, from about 0.001 to about 3 percent boron,
A nickel-base superalloy article has a coating having a composition, in weight percent, of from about 10 to about 20 percent cobalt, from about 14 to about 25 percent chromium, from about 2 to about 12 percent aluminum, from 0 to about 0.2 percent yttrium, from about 0.001 to about 3 percent boron, from about 1 to about 10 percent silicon, balance nickel and incidental impurities. The coating is preferably applied by mixing together two powders, one with a higher solidus temperature and one with a lower solidus temperature, whose net composition is that of the coating. The powder mixture is compacted with a binder, applied to a surface of the article, and heated to a temperature above the lower solidus temperature.
대표청구항
▼
A method for coating an article, comprising the steps of providing a substrate comprising a nickel-base superalloy having a directionally oriented microstructure; providing a first alloyed precursor powder comprising, in weight percent, from about 10 to about 20 percent cobalt, from about 14 to abou
A method for coating an article, comprising the steps of providing a substrate comprising a nickel-base superalloy having a directionally oriented microstructure; providing a first alloyed precursor powder comprising, in weight percent, from about 10 to about 20 percent cobalt, from about 14 to about 25 percent chromium, from about 2 to about 12 percent aluminum, from 0 to about 0.2 percent yttrium, balance nickel and Incidental Impurities, the first prealloyed precursor powder having a first solidus temperature; providing a second prealloyed precursor powder comprising, in weight percent, from about 10 to about 20 percent cobalt, from about 14 to about 25 percent chromium, from about 2 to about 12 percent aluminum, from about 0.001 to about 3 percent boron, from about 2 to about 12 percent silicon, balance nickel and Incidental impurities, the second prealloyed precursor powder having a second solidus temperature less than the first solidus temperature, the first prealloyed precursor powder and the second prealloyed precursor powder being present in a proportion sufficient to produce the composition of the coating; mixing the first prealloyed precursor powder and the second prealloyed precursor powder together to form a coating mixture; applying the coating mixture to a surface of the substrate; and heating the substrate and coating mixture to a temperature above the second solidus temperature.
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