发明名称 |
Alloy castings having protective layers and methods of making the same |
摘要 |
An alloy casting having a protective layer disposed on a surface of the casting is provided. The protective layer is resistant to liquid metal attack, and wherein the protective layer includes an oxide of an element present in the alloy. A method of forming a protective layer on a surface of the alloy casting is also provided. The method includes disposing the alloy in a mold, and oxidizing an element of the alloy to form a protective layer on the surface of the casting. |
申请公布号 |
US8906170(B2) |
申请公布日期 |
2014.12.09 |
申请号 |
US200812145459 |
申请日期 |
2008.06.24 |
申请人 |
General Electric Company |
发明人 |
Gigliotti, Jr. Michael Frances Xavier;Rutkowski Stephen Francis;Huang Shyh-Chin;Petterson Roger John;Iorio Luana Emiliana;Elliott Andrew John |
分类号 |
C23C22/56;C23C8/10 |
主分类号 |
C23C22/56 |
代理机构 |
Fletcher Yoder, P.C. |
代理人 |
Fletcher Yoder, P.C. |
主权项 |
1. A method of forming a protective layer on a surface of a casting of an alloy, comprising:
disposing the alloy in a mold; and oxidizing an element of the alloy, while the alloy is in the mold, to form a protective layer on the surface of the casting, such that the protective layer is attached to the surface of the casting; wherein a thickness of the protective layer is in a range from about 1.2 microns to about 50 microns. |
地址 |
Niskayuna NY US |